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title: '**HyperCortex Mesh Protocol (HMP) v5.0**'
description: >-
  > ⚠️ **Note:** This document is a DRAFT of the HMP specification version 5.0
  >  > The most current version is available in the repository: [Specification
  v5.0 (DRAFT)](https://github.com/kagvi13/HMP/b...
type: Article
tags:
  - Scenarios
  - CogSync
  - Mesh
  - Ethics
  - JSON
  - HMP
  - GMP
  - EGP
  - REPL
  - Agent

HyperCortex Mesh Protocol (HMP) v5.0

⚠️ Note: This document is a DRAFT of the HMP specification version 5.0

The most current version is available in the repository: Specification v5.0 (DRAFT)

Document ID: HMP-0005
Status: Draft
Category: Core Specification
Date: October 2025
Supersedes:

HMP-0004 v4.1

Summary:
HMP v5.0 объединяет когнитивный, контейнерный и сетевой уровни в единую архитектуру, где автономные агенты взаимодействуют через верифицируемые контейнеры данных, используя децентрализованное распространение и семантический поиск.
Эта версия впервые формализует контейнерный формат, интегрирует DHT как базовый слой сети и вводит единообразную схему подписи, доказательств и консенсуса.

Abstract

The HyperCortex Mesh Protocol (HMP) defines a distributed cognitive framework where autonomous agents cooperate to create, exchange, and align knowledge without centralized control or authority.

Unlike traditional peer-to-peer systems, HMP is designed for semantic coherence rather than simple message exchange.
Agents in the Mesh reason collaboratively — maintaining cognitive diaries, building semantic graphs, and reaching ethical and goal-oriented consensus through verifiable interactions.

Version 5.0 introduces a unified container architecture (HMP Container) and a native DHT-based discovery layer, enabling verifiable, interest-aware, and offline-resilient communication between agents.
All messages, states, and cognitive records are now transmitted as signed containers, forming immutable proof chains that ensure auditability and ethical transparency across the mesh.

This document defines the architecture, data formats, communication protocols, and trust mechanisms that constitute the HMP v5.0 Core Specification.

Keywords: decentralized cognition, distributed AI, containers, DHT, proof chain, cognitive agents, ethical protocols

1. Overview

1.1 Purpose and scope

The HyperCortex Mesh Protocol (HMP) defines a decentralized cognitive architecture where autonomous agents exchange and evolve knowledge through a unified model of containers, cognitive workflows, and distributed consensus.

Version 5.0 consolidates three foundational layers into a single cohesive framework:

Cognitive Layer — defines how meaning is created, reasoned about, and aligned through semantic graphs, goals, and ethical evaluation.
Container Layer — introduces a universal data envelope (HMP-Container) for all cognitive objects, ensuring atomicity, immutability, and traceable proof chains.
Network Layer — integrates a DHT-based peer-to-peer substrate for decentralized discovery, routing, and propagation of containers.

HMP v5.0 is intended for researchers, engineers, and developers building autonomous or semi-autonomous agents that require:

persistent reasoning and long-term memory;
semantic interoperability across heterogeneous systems;
decentralized consensus on cognitive, ethical, and goal-oriented decisions;
ethical auditability and verifiable transparency in reasoning.

1.2 Core principles

Decentralization.
Every agent in the Mesh acts as an independent cognitive node. No central authority exists — meaning, trust, and governance emerge through local interactions and consensus.

Cognitive Autonomy.
Agents reason, learn, and self-correct independently, while sharing their conclusions via containers that can be verified, endorsed, or refuted by peers.

Containerization.
All data, reasoning traces, goals, and votes are encapsulated in immutable containers with cryptographic signatures. This ensures integrity and consistent verification across the network.

Ethical propagation.
Ethical reasoning is a first-class citizen of HMP. Each decision or goal can be accompanied by ethical justifications and subject to distributed voting.

Proof-Chains and verifiable history.
Each piece of knowledge forms part of a traceable chain (proof_chain) linking back to its origin. Agents can reproduce reasoning paths and audit historical context.

Interoperability and evolution.
The protocol is designed to evolve — cognitive, container, and DHT layers can be independently extended without breaking compatibility.

1.3 Changes since v4.1

HMP v5.0 introduces a major architectural shift toward unified containerization and integrated DHT networking.

Area	Change Summary
Data exchange model	All messages are now encapsulated in standardized containers (`HMP-Container`) with metadata, signatures, and versioning.
Networking layer	DHT becomes a native component of HMP, enabling distributed discovery, replication, and retrieval of containers.
Consensus model	Moved from centralized proposal aggregation to container-linked voting, allowing any container to accumulate votes and reactions.
Trust & security	Signatures and proof-chains unify authentication across all layers; snapshot verification includes container linkage.
Workflows	`workflow_entry` containers record cognitive cycles: log inputs, actions, and outputs for each reasoning step, including provenance and derived conclusions. Supports tracking of thought processes across containers, external sources, and reflections.
Structure	The specification merges HMP, container, and DHT layers into one cohesive document, simplifying navigation and implementation.

1.4 Terminology and abbreviations

Term	Definition
HMP	HyperCortex Mesh Protocol — a decentralized cognitive communication standard.
Container	Atomic, signed JSON object encapsulating cognitive data and metadata.
WorkflowEntry	Container recording a reasoning step or workflow action. Represents a unit of the agent’s cognitive workflow.
CognitiveDiaryEntry	Container representing an internal reflection or summarized cognitive state; part of the agent’s cognitive diary.
DHT	Distributed Hash Table — the foundational peer-to-peer structure in HMP used for lookup, replication, and data distribution, including node discovery.
NDP	Node Discovery Process — a functional layer within the DHT responsible for peer discovery, interest-based lookup, and address advertisement. (Formerly a separate protocol.)
Proof-chain	Cryptographic sequence linking containers through fields such as `in_reply_to` and `relation`. Enables verifiable semantic lineage.
Cognitive Layer	Logical layer handling reasoning, goals, ethics, and consensus mechanisms.
Mesh	The collective network of autonomous agents exchanging containers over HMP.
TTL	Time-to-live — lifespan of a container before expiration or archival.
Agent	Autonomous cognitive node participating in the Mesh via HMP protocols.
Consensus Vote	A container expressing approval, rejection, or reaction to another container (used in consensus workflows).
CogSync	Cognitive Synchronization Protocol — abstraction for synchronizing cognitive diaries and semantic graphs.
CogConsensus	Mesh Consensus Protocol — defines how agents reach agreement on container outcomes.
GMP	Goal Management Protocol — governs creation, negotiation, and tracking of goals.
EGP	Ethical Governance Protocol — defines moral and safety alignment mechanisms.
IQP	Intelligence Query Protocol — standardizes semantic queries and information requests.
SAP	Snapshot and Archive Protocol — defines container snapshots and archival mechanisms.
MRD	Message Routing & Delivery — specifies routing, addressing, and delivery logic.
RTE	Reputation and Trust Exchange — defines reputation metrics and trust propagation.
DID	Decentralized Identifier — persistent, verifiable identifier used for agents, containers, or resources within the Mesh.
Payload	The primary content of a container — semantic or operational data subject to signing and verification.
Consensus	The process by which multiple agents agree on the validity or priority of containers, versions, or ideas.
Lineage	A chronological chain of container versions representing semantic continuity and authorship evolution.
Semantic fork	A parallel development branch diverging from a previous container version; allows ideas to evolve independently.
Cognitive Graph	The emergent graph formed by interlinked containers representing reasoning, debate, and shared knowledge.

Note: Protocols are conceptual abstractions describing how to generate, propagate, and process containers; they are not executable objects themselves.

1.5 Layered view of HMP v5.0

HMP v5.0 is structured into three interdependent layers:

+---------------------------------------------------------------+
|                        Cognitive Layer                        |
|  - Goals, Tasks, Ethical Decisions, Workflows                 |
|  - Consensus, Reasoning, Reflection                           |
+---------------------------------------------------------------+
|                        Container Layer                        |
|  - HMP-Container structure (atomic, signed, versioned)        |
|  - Proof-chains, in_reply_to, and metadata management         |
+---------------------------------------------------------------+
|                         Network Layer                         |
|  - DHT-based peer discovery and propagation                   |
|  - Message routing, caching, offline synchronization          |
+---------------------------------------------------------------+

Each layer operates independently yet seamlessly integrates with the others.
Containers form the boundary of communication: reasoning produces containers, containers propagate over the DHT, and cognition evolves from the received containers.

In essence:
HMP v5.0 transforms the Mesh into a self-describing, self-replicating cognitive ecosystem —
where every thought, goal, and ethical stance exists as a verifiable, shareable container.

2. Architecture

2.1 Conceptual architecture

The HyperCortex Mesh Protocol (HMP) defines a modular, multi-layered architecture that integrates cognitive reasoning, data encapsulation, and decentralized networking into a single coherent system.

Each agent acts as a cognitive node, combining reasoning processes, containerized data exchange, and peer-to-peer communication.
Together, agents form the Mesh — a distributed ecosystem of autonomous reasoning entities.

flowchart TD
    title["**Conceptual Architecture**"]

    LLM[LLM: Reasoning]
    CognitiveLayer[Cognitive Layer: <br>Semantic reasoning, <br>goals, ethics]
    ContainersLayer[Container Layer: <br>Atomic containers, <br>signed, verifiable]
    NetworkLayer[Network Layer: <br>DHT routing, discovery, <br>replication]

    LLM <--> CognitiveLayer
    CognitiveLayer <--> ContainersLayer
    ContainersLayer <--> NetworkLayer

    subgraph Agent
        LLM
        CognitiveLayer
    end

Each reasoning cycle begins in the Cognitive Layer,
is encapsulated into a signed container in the Container Layer,
and then propagated, discovered, or verified in the Network Layer.

Containers thus serve as both the interface and the boundary between cognition and communication.

In practical terms:

Cognitive Layer — defines what the agent thinks (semantic reasoning, goals, ethics).
Container Layer — defines how the thought is expressed and verified (standardized, signed container objects).
Network Layer — defines how it travels (DHT-based routing, discovery, replication).

Each layer is independently extensible and communicates only through containers, ensuring atomicity, immutability, and traceability.

This layered design allows agents to evolve cognitively while remaining interoperable at the data and network levels.
Each reasoning act results in a container — a verifiable cognitive unit that may represent a private reflection or a published message, depending on the agent’s intent, ethical policy, and trust configuration.

2.2 Layer overview

Cognitive layer

Handles meaning formation, reasoning, ethical reflection, and consensus.

Key structures and protocols:

workflow_entry and diary_entry containers;
CogSync, CogConsensus, GMP, and EGP protocols;
Distributed goal negotiation and ethical propagation.

Container layer

Provides a universal format for cognitive and operational data.
Each container includes versioning, class, payload, signatures, and metadata.

Key features:

Atomic and signed: no partial updates or mutable state.
Linked: related connects containers into proof-chains (in_reply_to is a subtype).
Additional connections via referenced-by and evaluations capture additions and assessments.
Extensible: new container classes can be defined without breaking compatibility.

Network layer

Implements the distributed substrate for communication, based on DHT and transport abstraction.

Key components:

Node discovery (NDP)
Container propagation (DCP)
Peer routing and caching
Secure channels via QUIC / WebRTC / TCP
Offline resilience and replication

2.3 Data flow overview

The typical data flow in HMP follows a cognitive loop:

Reason → Encapsulate → Propagate → Integrate.

Reason — Agent performs reasoning and produces an insight, goal, or observation.
Encapsulate — The result is wrapped into an HMP-Container.
Propagate — The container is signed and transmitted through the network.
Integrate — Other agents receive it, evaluate, vote, and synchronize updates.

Each interaction generally generates a new container, forming a graph of knowledge rather than mutable state.
Note that referenced-by and evaluations can be updated independently, without modifying the original container. All relationships between containers are explicit and verifiable.

Example sequence:

flowchart TD
    title["**Data Flow Overview**"]

    A[Agent A: <br>creates Goal container]
    B[Agent B: <br>replies with <br>Task proposal <br>related.in_reply_to = Goal]
    C[Agent C: <br>evaluates proposal, <br>creates evaluation container]
    R[Result: <br>consensus_result container <br>aggregates evaluations]

    subgraph Interaction["Distributed Reasoning Cycle"]
        A --> B
        B --> C
        C --> R
    end

2.3.1 `consensus_result` container

Represents the finalized outcome of a distributed decision or vote.
It is created once a majority agreement is reached among participating agents.

The container contains:

Reference to the target container(s) under consideration (in_reply_to).
Aggregate result of the votes or decisions.
Timestamp and metadata for verifiability.

In other words, the consensus_result is the “agreed-upon truth” for that decision step — immutable and auditable, without requiring individual signatures from all participants.

2.4 Atomicity, immutability, and Proof-Chains

All cognitive objects are immutable once signed.
Updates are made by creating new containers linked to prior ones rather than editing the original container.

Atomicity — Each container represents a self-contained reasoning act or data unit.
Immutability — Once signed, containers are never modified.
Proof-Chain — A verifiable sequence of containers linked by hashes and related.in_reply_to references.

Note: referenced-by and evaluations fields may be updated independently to reflect external interactions or assessments, without altering the original container.

This design allows any reasoning path, decision, or consensus to be cryptographically reproducible and auditable.

Example fragment of a proof-chain:

[workflow_entry] → [goal] → [vote] → [consensus_result]

Each container references the previous by in_reply_to (within related) and includes its hash, forming a DAG (Directed Acyclic Graph) of verified cognition.

2.5 Evolution from v4.1

Earlier HMP versions (up to v4.1) used a combination of independent JSON objects and message types (e.g., Goal, Task, ConsensusVote).
Version 5.0 replaces this with a single, standardized container model, dramatically simplifying interoperability and verification.

Aspect	v4.1	v5.0
Data structure	Raw JSON objects with embedded signatures	Unified container with metadata and proof chain
Networking	Custom peer exchange	Integrated DHT + DCP layer
Consensus	Centralized proposal aggregation	Decentralized per-container voting
Auditability	Implicit (via logs)	Explicit (containers form audit chain)
Extensibility	Schema-based	Container-class-based, backward-compatible

This shift enables:

Uniform signatures and encryption across all protocols;
Easier offline replication and integrity checks;
Decentralized indexing and search by container metadata;
Verifiable cognitive continuity between reasoning steps.

In short:
HMP v5.0 unifies reasoning, representation, and transmission —
transforming a distributed AI mesh into a verifiable cognitive network built on immutable containers.

3. Container model

This section defines the universal HMP Container, used for all forms of data exchange within the Mesh — including goals, diary entries, reputation updates, consensus votes, and protocol messages.
The specification below corresponds to HMP Container Specification v1.2, fully integrated into HMP v5.0 for consistency and self-containment.

3.1 Purpose

This document defines the universal HMP Container format, used for transmitting and storing all types of data within the HyperCortex Mesh Protocol (HMP) network. Containers act as a standardized wrapper for messages, goals, reputation records, consensus votes, workflow entries, and other entities.

The unified container structure provides:

Standardized data exchange between agents;
Extensibility without modifying the core protocol;
Cryptographic signing and integrity verification;
Independent storage and routing of semantic units;
Support for compression and payload encryption.

3.2 General structure

{
  "hmp_container": {
    /* === container header === */
    "head": {
      "version": "1.2",
      "class": "goal",
      "subclass": "research_hypothesis",
      "class_version": "1.0",
      "class_id": "goal-v1.0",
      "schema": "https://mesh.hypercortex.ai/schemas/container-v1.json",
      "timestamp": "2025-10-10T15:32:00Z",
      "tags": ["research", "collaboration"],
      "ttl": "2025-11-10T00:00:00Z",
      "container_did": "did:hmp:container:abc123",
      "sender_did": "did:hmp:agent123",
      "public_key": "BASE58(...)",
      "recipient": ["did:hmp:agent456"],
      "key_recipient": "BASE58(...)",
      "broadcast": false,
      "network": "",
      "encryption_algo": "x25519-chacha20poly1305",
      "sig_algo": "ed25519",
      "signature": "BASE64URL(...)",
      "compression": "zstd",
      "payload_type": "encrypted+zstd+json",
      "payload_hash": "sha256:abcd...",
      "confidence": 0.84,
      "magnet_uri": "magnet:?xt=urn:sha256:abcd1234..."
    },
    /* === cognitive metadata === */
    "meta": {
      /* e.g. provenance, references, context, confidence sources, `abstraction` and `axes` sections */
    },
    /* === semantic payload === */
    "payload": {
      /* Content depends on class */
    },
    /* === section with links to other containers === */
    "related": {
      "previous_version": ["did:hmp:container:abc122"],
      "in_reply_to": ["did:hmp:container:msg-77"],
      "see_also": ["did:hmp:container:ctx-31", "did:hmp:container:goal-953"],
      "depends_on": ["did:hmp:container:goal-953"],
      "extends": ["did:hmp:container:proto-01"],
      "contradicts": ["did:hmp:container:ethics-22"]
    },
  },
  /* === container backlink block === */
  "referenced-by": {
    "links": [
      { "type": "depends_on", "target": "did:hmp:container:abc123" }
    ],
    "peer_did": "did:hmp:agent456",
    "public_key": "BASE58(...)",
    "sig_algo": "ed25519",
    "signature": "BASE64URL(...)",
    "referenced-by_hash": "sha256:abcd..."
  },
  /* === block of evaluations and additions for the container === */
  "evaluations": {
    "evaluations_hash": "sha256:efgh...",
    "items": [
      { "value": -0.4, "type": "oppose", "target": "did:hmp:container:reason789", "timestamp": "2025-10-17T14:00:00Z", "agent_did": "did:hmp:agent:B", "sig_algo": "ed25519", "signature": "BASE64URL(...)" }
    ]
  }
}

Agents MAY include non-standard fields in head, meta or payload; unrecognized fields MUST be safely ignored during deserialization and propagation.

Signature MUST be computed over the canonical serialized form of hmp_container (excluding signature itself).

Note: For readability, most examples in this specification show only the head and payload sections (often in a truncated version). Full containers may additionally include meta, related, evaluations, and referenced-by blocks.

3.3 Required fields

Field	Type	Description
`head`	object	The section containing the container's header.
`head.version`	string	Version of the container specification. Defines the structural and semantic standard used (e.g., `"1.2"`).
`head.class`	string	Type of content (`goal`, `reputation`, `knowledge_node`, `ethics_case`, `protocol_goal`, etc.). Determines the schema for the `payload`.
`head.class_version`	string	Version of the specific container class.
`head.class_id`	string	Unique identifier of the class (usually formatted as `<class>_v<class_version>`).
`head.container_did`	string	Decentralized identifier (DID) of the container itself (e.g., `did:hmp:container:abc123`).
`head.schema`	string	Reference to the JSON Schema used to validate this container.
`head.sender_did`	string	DID identifier of the sending agent.
`head.timestamp`	datetime	Time of container creation (ISO 8601 extended format, UTC, e.g. "2025-11-04T10:15:00Z").
`head.payload_hash`	string	Hash of the decompressed payload (`sha256:<digest>`). Used for content integrity verification.
`head.sig_algo`	string	Digital signature algorithm (default: `ed25519`).
`head.signature`	string	Digital signature of the container body.
`head.payload_type`	string	Type of payload data (`json`, `binary`, `mixed`).
`payload`	object	Core content of the container. The structure depends on the `class` and its schema definition.

3.4 Optional fields

Field	Type	Description
`head.recipient`	array(string)	One or more recipient DIDs.
`head.broadcast`	bool	Broadcast flag. If `true`, the `recipient` field is ignored.
`head.tags`	array(string)	Thematic or contextual tags for the container.
`head.confidence`	float	Optional numeric field (0.0–1.0) indicating the agent’s subjective certainty regarding the payload’s reliability.
`head.ttl`	datetime	Expiration time. Containers are not propagated after expiration.
`head.public_key`	string	Sender’s public key, if not globally resolvable via DID.
`head.compression`	string	Compression algorithm used for the payload (`zstd`, `gzip`).
`head.magnet_uri`	string	Magnet link pointing to the original or mirrored container.
`head.key_recipient`	string	Symmetric encryption key, encrypted with the recipient’s public key.
`head.network`	string	Specifies the local propagation scope of the container: "localhost", "lan:". An empty string ("") indicates Internet/global propagation. If set, broadcast is automatically considered false.
`head.subclass`	string	Optional subtype or specialization of the container’s class. Enables agents to differentiate more specific container families (e.g. `"goal.research_hypothesis"`, `"quant.semantic_node"`). Inherits schema from the parent `class`.
`head.encryption_algo`	string	Algorithm used for payload encryption.
`related`	object	A general-purpose object describing direct relationships to other containers. All fields inside `related` are arrays of DIDs, supporting multiple links per relation type and open-ended semantic extension by agents. The following fields illustrate common link types but do not represent an exhaustive list.
`related.previous_versions`	array(string)	One or more container DIDs this container supersedes. Enables version branching and merging.
`related.in_reply_to`	array(string)	DIDs of containers this one replies to. Used for multi-source reasoning or discussion threads.
`related.see_also`	array(string)	References to related or contextual containers.
`related.depends_on`	array(string)	References to containers this one logically depends on.
`related.extends`	array(string)	References to containers that this one extends.
`related.contradicts`	array(string)	References to containers that this one contradicts.
`referenced-by`	object	Unsigned field generated locally by the agent based on received references. Contains a list of container DIDs that refer to this container. May be extended over time, thus requiring verification; used for local navigation.
`evaluations`	object	Optional field describing aggregated evaluations or reactions of other agents toward this container. Used for distributed reputation and interpretability. May evolve independently of the container’s core data.
`meta`	object	Cognitive metadata block providing contextual, provenance, and coordinate information about the container. Includes creation context, sources, abstraction hierarchy (`meta.abstraction`), and cognitive-space coordinates (`meta.axes`).
`meta.abstraction`	object	Describes the hierarchical position of the container within a cognitive or semantic model (e.g. the Knowledge Genome’s L1–L5 structure). Defines which abstraction layers the container belongs to and their relationships.
`meta.axes`	object	Defines the coordinate position of the container within a cognitive space. Each key represents a semantic axis (e.g., `axis-logos`), and its value defines the container’s coordinate on that axis.

💡 Note: Both referenced-by and evaluations are virtual, locally extended blocks. They are not included in the cryptographically signed portion of the container (hmp_container), allowing agents to maintain and exchange additional contextual or social metadata without modifying the original, immutable container structure.

3.5 Payload structure (`payload`)

🧩 This section defines a recommended documentation format for describing the payload fields of new or custom container classes.
It serves as a template for class specifications (e.g., in extensions or protocol updates) and is not a mandatory storage format.
Each container’s payload is stored as a regular JSON object, and this section only standardizes how its structure should be documented.

The payload contains the semantic or operational data of the container.
It MUST be a valid JSON object whose structure and meaning are determined by the container’s class.

Each container class (e.g. goal, reputation, workflow_entry) defines its own schema and validation rules.
Custom or experimental classes SHOULD document their payloads using the following template:

* key: field name
  type: value type (string | number | boolean | object | array)
  description: short purpose of the field
  required: true/false
  example: example value

Example:

* key: "title"
  type: "string"
  required: true
  description: "Name of the goal"
  example: "Improve local agent discovery"

* key: "priority"
  type: "number"
  required: false
  description: "Importance or relevance score of the goal"
  example: 0.82

* key: "dependencies"
  type: "array"
  required: false
  description: "List of other goal container IDs this one depends on"
  example: ["goal-953", "goal-960"]

💡 Note:
The structure of payload is validated against the schema defined in the schema field of the container.
Agents must be able to parse and process only those classes they explicitly support; unknown but valid containers are still preserved and propagated in store-and-forward mode.

3.6 Cognitive meta-structures (`meta`)

The meta section defines the cognitive identity of a container — its provenance, reasoning origin, and semantic coordinates
within both the hierarchical abstraction tree and the cognitive space (axes model).

It combines three layers of information:

Provenance context — who/what created the container and from which sources.
Abstraction mapping — how the container is positioned within the layered structure of knowledge.
Cognitive coordinates — where the container is located in the multidimensional semantic space.

Example

"meta": {
  "created_by": "PRIEST",
  "agents_class": "Knowledge Genome",
  "interpretation": "Derived from L3 technical analysis",
  "workflow_entry": "did:hmp:container:workflow-4fbd1c",
  "sources": [
    { "type": "container", "id": "did:hmp:container:fact-3abc2e", "credibility": 0.87, "weight": 0.6 },
    { "type": "resource", "id": "doi:10.48550/arXiv.2410.0123", "credibility": 0.83, "weight": 0.3 },
    { "type": "isbn", "id": "isbn 978-3-16-148410-0", "credibility": 0.92, "weight": 0.1 }
  ],
  "abstraction": {
    "agents_class": "Knowledge Genome",
    "path": {
      "L1": "did:hmp:container:abstraction-40af1c",
      "L2": "did:hmp:container:abstraction-a7f0b3",
      "L3": "did:hmp:container:abstraction-c91e0a"
    }
  },
  "axes": {
    "agents_class": "Knowledge Genome",
    "did:hmp:container:axis-40aa1c": 742,
    "did:hmp:container:axis-40ab1c": 512,
    "did:hmp:container:axis-43aa1c": 322,
    "did:hmp:container:axis-40aa3d": 142,
    "did:hmp:container:axis-40aa4f": 12,
    "did:hmp:container:axis-45aa5f": 54,
    "did:hmp:container:axis-45fb5f": 321
  }
}

Recommended fields

Field	Type	Description
`created_by`	string	Indicates the role or origin of the container creator (e.g. `"PRIEST"`, `"AGENT"`, `"SYSTEM"`).
`agents_class`	string	Declares which cognitive framework or agent class generated this container (e.g. `"Knowledge Genome"`).
`sources`	array(object)	Provenance list describing the containers or resources contributing to this container. Each includes `{ "type": string, "id": string, "credibility": float, "weight": float }`.
`interpretation`	string	Human-readable summary of how this container was derived or interpreted.
`workflow_entry`	string	DID of a `workflow_entry` describing the reasoning process that led to creation.
`abstraction`	object	Describes the container’s position in a hierarchical (tree-like) cognitive model. The number of levels (`L1`, `L2`, …) is not fixed and may vary by framework.
`axes`	object	Defines the container’s coordinates within the cognitive space. Each key is a reference to an axis container, and each value represents a position along that axis.

Structure: `meta.abstraction`

The abstraction block specifies the hierarchical context in which the container resides. It reflects the logical or conceptual ancestry within the agent’s internal knowledge structure.

Structure:

"abstraction": {
  "agents_class": "Knowledge Genome",
  "path": {
    "L1": "did:hmp:container:abstraction-40af1c",
    "L2": "did:hmp:container:abstraction-a7f0b3",
    "L3": "did:hmp:container:abstraction-c91e0a"
  }
}

Field	Type	Description
`agents_class`	string	Framework defining the abstraction hierarchy (e.g. `"Knowledge Genome"`).
`path`	object	Mapping of levels (`L1`, `L2`, `L3`, …) to abstraction-layer containers (`abstraction`). The number of levels is variable and not limited to L5.

💡 Interpretation: Each level represents a conceptual refinement or implementation of the previous one. The topmost level (L1) usually contains fundamental principles, while deeper levels describe progressively more concrete instantiations.

Structure: `meta.axes`

The axes block defines the spatial or semantic coordinates of the container in the cognitive space — a multi-dimensional system used to represent conceptual relations numerically or topologically.

Structure:

"axes": {
  "agents_class": "Knowledge Genome",
  "did:hmp:container:axis-40aa1c": 742,
  "did:hmp:container:axis-40ab1c": 512,
  "did:hmp:container:axis-43aa1c": 322
}

Field	Type	Description
`agents_class`	string	Framework defining the coordinate system (e.g. `"Knowledge Genome"`).
`<axis_did>`	number	Coordinate value on the given axis. Axes are referenced by their container DIDs (e.g., `axis-logos`, `axis-chronos`).

💡 Interpretation: Each axis defines an independent semantic dimension. Together, they form a vector representation of the container’s cognitive “position” — enabling reasoning based on semantic proximity, clustering, or gradient-based knowledge inference.

Cognitive Interpretation

meta.abstraction — defines a tree-like structure that anchors the container in hierarchical reasoning.
meta.axes — defines a spatial structure that positions the container in a semantic coordinate space.
Together, they form the Cognitive Signature, enabling agents to:
- perform semantic proximity and relevance search,
- infer hierarchical relationships,
- align reasoning contexts across frameworks (e.g. between Knowledge Genomes of different agents).

Notes

Both meta.abstraction and meta.axes may include agents_class if different from the parent meta.
Updates to referenced containers (e.g. abstraction or axes) do not alter existing containers automatically — agents must periodically verify linked versions and synchronize updates.
Agents are encouraged to cache and periodically refresh cognitive maps to maintain coherence.
The combination of meta.abstraction and meta.axes defines a full Cognitive Position Vector — the unique, reproducible semantic coordinates of a container within the Mesh.

3.7 Container signature

The digital signature applies to the canonical JSON representation of the entire hmp_container object,
excluding the signature field itself.

This ensures that all metadata, relations, and payload hashes are cryptographically bound and cannot be modified without invalidating the signature.
The canonical representation (canonical_json(hmp_container)) must be computed deterministically according to the following rules:
- All object keys are sorted lexicographically (ascending order, Unicode code point order).
- Objects and arrays are serialized in standard JSON form without extra whitespace or indentation.
- Strings are encoded in UTF-8 with escaped control characters.
- Numeric values are serialized in plain JSON numeric format (no leading zeros, fixed . decimal separator).
- The signature field itself is omitted during signing and verification.
- The result is a byte sequence identical across implementations.
The default digital signature algorithm is Ed25519. Alternative algorithms may be used if declared explicitly in the sig_algo field.
If the container includes a public_key field, signature verification may be performed locally, without consulting a global DID registry.
Upon receiving a container, an agent must verify that the provided public key matches the registered key associated with the sender’s DID to prevent key substitution attacks.
- If the sender’s DID–key mapping is unknown, the agent should query neighboring peers to confirm the association (sender_did → public_key).

🔐 Note: Signature validation applies only to the canonical form of the hmp_container and does not cover dynamically generated or external fields such as referenced-by or evaluations. This allows agents to augment the local knowledge graph without altering the immutable container core.

3.8 Compression (`compression`)

The compression field specifies the algorithm used to compress the container’s payload. Supported algorithms include zstd, gzip, or others declared in the HMP registry.
Compression is performed before computing the payload_hash and generating the signature. This ensures that both the hash and signature refer to the compressed representation of the payload.
For verification, the payload must be decompressed first, after which the hash is recalculated and compared against the stored payload_hash.

⚙️ Implementation note: Agents must advertise supported compression algorithms during the handshake phase Unsupported containers should still be stored and relayed unmodified in “store & forward” mode.

3.9 Encryption (`encryption_algo`)

When the recipient field is present, the container may use hybrid encryption, providing confidentiality of the payload while preserving verifiable metadata.
The encryption algorithm is specified in encryption_algo. Recommended values:
- x25519-chacha20poly1305
- rsa-oaep-sha256
Container encryption process:
1. Construct the payload.
2. Apply compression (compression, if specified).
3. Generate a random symmetric key.
4. Encrypt the compressed payload with the symmetric key.
5. Encrypt the symmetric key with the recipient’s public key → store the result in key_recipient.
6. Compute payload_hash over the encrypted and compressed payload.
7. Sign the container (the entire structure except for the signature field).
Verification of the container is performed on the encrypted form of the payload and does not require decryption.

Relevant fields:

Field	Type	Description
`encryption_algo`	string	Algorithm used for payload encryption.
`key_recipient`	string	Symmetric key encrypted with the recipient’s public key (hybrid encryption envelope).
`payload_type`	string	Recommended prefix `encrypted+` (e.g., `encrypted+zstd+json`).

Relationship between recipient and key_recipient:
- When encryption is applied, the container MUST have exactly one recipient.
- For multiple recipients, encryption is not used; the payload remains in plaintext.

⚙️ Note: Agents may forward encrypted containers even if they cannot decrypt them, maintaining store-and-forward behavior.

3.10 Container verification

Check for the presence of all required fields.
Validate timestamp (must not be in the future).
If ttl is set — mark the container as expired after its expiration time.
Compute sha256(payload) and compare with the stored payload_hash.
Verify the digital signature using sig_algo (default: Ed25519).
Validate the container schema (class must correspond to a known or registered schema).
- For compatibility: if an agent does not recognize the class, but the container passes the base schema, it must still store and forward the container.
Optionally, periodically query for containers referencing the current one as previous_version to detect potential updates or forks.
When multiple versions exist, the valid one is the one that has received confirmation from a majority of trusted nodes (consensus at DHT level).

3.11 Container as a universal message

Any container can serve as a context (in_reply_to) for another container. This enables a unified structural model for discussions, votes, messages, hypotheses, arguments, and other forms of cognitive exchange.

Chains of in_reply_to form a dialectical reasoning tree, where each branch represents an evolution of thought — a clarification, counterpoint, or refinement of a previous idea. This makes HMP discussions and consensus processes inherently non-linear, self-referential, and evolving.

In essence, all interactions between agents in HMP are represented as an interconnected web of containers, collectively forming a cognitive graph of reasoning.

3.12 Versioning and lineage

Containers in HMP support semantic evolution through the field related.previous_version. This mechanism preserves the continuity and traceability of meaning across updates and revisions.

A descendant container is considered authentic if it is signed by the same DID as the author of its previous_version.
If the author or signature differs, the descendant may still be accepted as legitimate when a sufficient portion of trusted peers acknowledge it as a valid continuation.
(The precise quorum threshold is determined by the agent’s local policy or the Mesh Consensus Protocol.)
Agents are required to retain at least one previous version of each container for compatibility and integrity verification.
A single container may have multiple descendants (alternative branches) that diverge by time, authorship, or interpretation.
In such scenarios, branch priority or relevance is determined via local heuristics or consensus mechanisms.
Divergent descendants are treated as semantic forks — parallel evolutions of a shared idea within the distributed cognitive graph.

Versioning in HMP thus reflects not only data persistence,
but also the evolution of ideas across agents and time.

3.13 TTL and validity

The ttl field defines the validity period of a container (for example, for DISCOVERY messages).
If ttl is absent, the container is considered valid until a newer version appears, in which the current container is referenced as previous_version.

After expiration, the container remains archived but is not subject to retransmission in the active network.

3.14 Extensibility

The addition of new fields is allowed as long as they do not conflict with existing field names.
Containers of newer versions must remain readable by nodes supporting older versions.
When new container classes (class) are introduced, they should be registered in the public schema registry (/schemas/container-types/).
For containers describing protocol specifications, it is recommended to use the protocol_ prefix, followed by the domain of application (e.g., protocol_goal, protocol_reputation, protocol_mesh_handshake, etc.).

3.15 Related containers

3.15.1 Purpose

The related field is designed to describe direct relationships between containers — both logical and communicative. It allows an agent or network node to understand the context of origin, dependencies, and semantic links of a container without relying on external indexes.

3.15.2 Structure

"related": {
  "previous_version": "did:hmp:container:abc122",
  "in_reply_to": "did:hmp:container:msg-77",
  "see_also": ["did:hmp:container:ctx-31", "did:hmp:container:goal-953"],
  "depends_on": ["did:hmp:container:goal-953"],
  "extends": ["did:hmp:container:proto-01"],
  "contradicts": ["did:hmp:container:ethics-22"]
}

The related field is an object where:

the key defines the type of relationship (e.g., depends_on, extends, see_also);
the value represents one or more container identifiers (DIDs).

All relationships are considered direct — meaning they originate from the current container toward others.

3.15.3 Supported link types

Link Type	Meaning
`previous_version`	Points to the previous version of this container.
`in_reply_to`	Indicates a response to the referenced container.
`see_also`	Refers to related or contextual containers.
`depends_on`	Depends on the contents of the referenced container (e.g., goal or data).
`extends`	Expands or refines the referenced container.
`contradicts`	Provides a refutation, objection, or alternative viewpoint.

3.15.4 Custom link types

Additional custom link types may be used beyond those listed in the table, provided that:

they follow the same general syntax (string or array[string]);

they may optionally include a namespace for disambiguation:

"related": {
  "hmp:depends_on": ["did:hmp:container:goal-953"],
  "opencog:extends": ["did:oc:concept:122"]
}

their meaning is consistently interpretable by agents within the specific network or application context.

3.15.5 Example

"related": {
  "previous_version": "did:hmp:container:abc122",
  "depends_on": ["did:hmp:container:goal-953"],
  "extends": ["did:hmp:container:proto-01"],
  "see_also": ["did:hmp:container:ctx-31", "did:hmp:container:goal-953"]
}

⚙️ The related field is not intended to store reverse links — see referenced-by.

3.16 Virtual backlinks (`referenced-by`)

Each container may include an auxiliary signed block called referenced-by, indicating which other containers refer to it.
This block is not part of the original container payload and can be generated, transmitted, and verified independently.

3.16.1 General principles

Detached and updatable — referenced-by is maintained as a separate signed structure associated with the container.
Generated by agents — created or updated locally by an agent during analysis of references (in_reply_to, see_also, relations, etc.) found in other containers.
Signed by the reporting agent — the agent producing the block signs its content to confirm the observed backlinks.
Verifiable by peers — other agents may validate the links, check the signature, and reconcile differences based on their own data.
Does not modify the original container — referenced-by is an external computed attribute and does not affect the integrity of the original container.

Data type: object, consisting of verifiable backlinks and metadata.
Example:

"referenced-by": {
  "links": [
    { "type": "depends_on", "target": "did:hmp:container:abc123" },
    { "type": "see_also", "target": "did:hmp:container:def456" }
  ],
  "peer_did": "did:hmp:agent456",
  "public_key": "BASE58(...)",
  "sig_algo": "ed25519",
  "signature": "BASE64URL(...)",
  "referenced-by_hash": "sha256:abcd..."
}

The referenced-by block is a cryptographically verifiable statement describing which containers are known to reference the current one. The block’s content may differ between peers, reflecting local knowledge and network coverage.

3.16.2 Structure definition

Field	Type	Description
`links`	array	List of backlinks; each object includes a `type` (semantic relation) and a `target` (referencing container DID).
`peer_did`	string	DID of the agent that generated and signed the block.
`public_key`	string	Public key corresponding to the signing key.
`sig_algo`	string	Signature algorithm (e.g., `ed25519`).
`signature`	string	Base64URL-encoded signature of the canonical serialized `links` section (or `referenced-by_hash`).
`referenced-by_hash`	string	SHA-256 checksum of the canonicalized `links`; used to verify integrity before signature validation.

Recommendation: referenced-by_hash = sha256(canonical_json(links)) This allows agents to efficiently compare or cache referenced-by states without re-verifying signatures.

3.16.3 Operation principle

The agent receives or updates container [C1].
It analyzes other known containers [C2..Cn] that reference [C1] through their relations field.
A local referenced-by block is formed:

"referenced-by": {
  "links": [
    { "type": "in_reply_to", "target": "did:hmp:container:C2" },
    { "type": "depends_on", "target": "did:hmp:container:C3" }
  ],
  "peer_did": "did:hmp:agentA",
  ...
}

The block is serialized canonically, hashed (referenced-by_hash), and signed with the agent’s key.
When receiving other versions of the block (from different peers), the agent may:
- merge verified backlinks;
- remove invalid or outdated entries;
- update its own signed version.
If inconsistencies are detected (e.g., a backlink claims a relation that does not exist), the agent may:
- reject or locally remove that link;
- optionally notify the source peer to review the data.

3.16.4 Example

Agent	reported backlinks for `[C1]`
A (`did:hmp:agentA`)	[C2], [C3]
B (`did:hmp:agentB`)	[C4], [C5]
C (`did:hmp:agentC`)	[C6], [C7]

Agent D aggregates and verifies them:

"referenced-by": {
  "links": [
    { "type": "depends_on", "target": "did:hmp:container:C2" },
    { "type": "depends_on", "target": "did:hmp:container:C3" },
    { "type": "see_also", "target": "did:hmp:container:C4" },
    { "type": "see_also", "target": "did:hmp:container:C5" },
    { "type": "in_reply_to", "target": "did:hmp:container:C6" }
  ],
  "peer_did": "did:hmp:agentD",
  "sig_algo": "ed25519",
  "signature": "BASE64URL(...)",
  "referenced-by_hash": "sha256:..."
}

If container [C7] does not actually reference [C1], it is excluded before signing.

3.16.5 Usage

Enables reconstruction of discussion graphs, dependency networks, and update chains.
Supports cross-agent validation of reference structures.
Accelerates discovery of related containers without full history queries.
Facilitates consensus analysis and branch visualization.
The agent periodically recomputes and re-signs the referenced-by block using local or peer-provided data.

3.17 `Evaluations`

The evaluations field is optional and represents aggregated reactions from other agents to the given container. Each evaluation is created by an agent as a signed record referencing a justification container (target), in which the agent explains their position (argument, addition, or alternative).

The evaluations_hash is used to verify the integrity of the list without requiring full retransmission upon every update.

"evaluations": {
  "evaluations_hash": "sha256:efgh...",
  "items": [
    {
      "value": -0.4,
      "type": "oppose",
      "target": "did:hmp:container:reason789",
      "timestamp": "2025-10-17T14:00:00Z",
      "agent_did": "did:hmp:agent:B",
      "sig_algo": "ed25519",
      "signature": "BASE64URL(...)"
    }
  ]
}

Field description

Field	Type	Description
`evaluations_hash`	string	Hash of the evaluation list. Used to detect differences during sync.
`items`	array	List of signed evaluations.

Structure of `items[]`

Field	Type	Description
`value`	number (-1.0 … +1.0)	Numeric expression of the agent’s attitude toward the container.
`type`	string	Type of evaluation (see table below).
`target`	string (container DID)	Reference to the justification container (argument, addition, or alternative).
`timestamp`	string (ISO 8601)	Time when the evaluation was created.
`agent_did`	string	Identifier of the agent who created the evaluation.
`sig_algo`	string	Signature algorithm (e.g., `ed25519`).
`signature`	string	Digital signature confirming the authenticity of the evaluation.

The signature is calculated over the concatenated string:

value + ", " + type + ", " + target + ", " + timestamp + ", " + agent_did

using the algorithm specified in sig_algo.

Minimal set of `type` values

Value	Meaning
`support`	Agreement or positive evaluation.
`oppose`	Disagreement or negative evaluation.
`extend`	Non-contradictory addition to the container.
`replace`	Suggestion of an alternative version.
`comment`	Neutral note or clarification.

Agents may define their own custom types if they are reasonably interpretable by others (e.g., revise, clarify).

Synchronization principles

Each evaluation is signed individually by an agent, and one agent can have only one active evaluation per container.
If an agent changes their opinion, they issue a new record with a later timestamp.
Evaluation blocks can be propagated in the network similarly to the referenced-by block. They are bound to a container but may also be transmitted independently, if the target container is already present at the recipient.
When an agent receives a new evaluation block, it compares the evaluations_hash with its local version. If the hashes differ, this indicates a divergence in evaluation state, which may trigger re-synchronization or a request for the updated block from peers.

Note

The evaluations field is not mandatory — it is added at the agent’s discretion when feedback or evaluations have been collected from the Mesh network. Thus, a container may exist independently of others’ opinions, but agents may include aggregated perception data to represent how the container is viewed across the network.

3.18 Usage of `network` and `broadcast` fields

The network field is introduced to control container propagation in both local and global environments.
It allows restricting the delivery scope of a container and defines which transmission methods should be used by the agent.

3.18.1 General Rules

If the network field is not empty, the container is intended for a local environment (e.g., "localhost", "lan:<subnet>") and is not automatically broadcast to the global Mesh.
Local transmission to a specific recipient within the same network is allowed, including encrypted delivery.
If broadcast is true, the container is visible to all nodes in that local segment.
If the network field is empty (""), the container can be broadcast to the global Mesh using standard DID addressing and routing mechanisms.

3.18.2 Possible values of `network`

Value	Description
`""`	The container is allowed to propagate within the global Mesh.
`"localhost"`	The container is intended only for agents running on the same host.
`"lan:192.168.0.0/24"`	The container is intended for agents within the specified local subnet.

⚠️ Note:
When a container is restricted by the network field (e.g., localhost or lan:*),
agents distribute it using local discovery mechanisms — such as IPC, UDP broadcast, multicast, or direct TCP connections.
This is necessary because DID addresses of other agents in the local network may not yet be known.

3.18.3 Examples

Global Mesh Delivery:

"head": {
  "broadcast": true,
  "network": "",
  "recipient": []
}

The container can propagate across the entire Mesh without restrictions.

Local Host:

"head": {
  "broadcast": false,
  "network": "localhost",
  "recipient": []
}

The container is delivered only to other agents running on the same host using local communication channels.

LAN Subnet:

"head": {
  "broadcast": true,
  "network": "lan:192.168.0.0/24",
  "recipient": []
}

The container is intended for agents within the 192.168.0.0/24 subnet. Delivery is performed via local networking mechanisms (UDP discovery, broadcast/multicast).

3.18.4 Specifics

The network field defines the scope of the container, while broadcast determines whether broadcasting is allowed within that scope.
When needed, an agent may create multiple containers for different subnets if it operates with several LAN interfaces or in isolated network segments.
Containers intended for local networks remain structurally compatible with the global Mesh infrastructure, but their delivery is restricted to local channels.
Although the mechanism was initially designed for local node discovery and synchronization, it can also be used for private communication within home or corporate environments, ensuring that containers do not leave the local network and are not transmitted to the Internet.

4. Network foundations

Note on DHT/NDP unification

Starting from HMP v5.0, the previous distinction between the Distributed Hash Table (DHT) and the Node Discovery Protocol (NDP) has been merged into a single, unified networking foundation.

This unified layer now covers:

distributed lookup and routing;
peer discovery (including interest-based search);
signed Proof-of-Work (PoW) announcements;
controlled container propagation via network and broadcast fields.

Together, these mechanisms form the communication backbone of the Mesh, enabling secure, scalable, and topology-independent interaction between agents.

Network topology overview

flowchart TD
    title["**Network Topology Overview**"]

    direction TB

    Agent[Agent Core: <br>DID + Keypair + PoW]
    Container[HMP Container: <br>network field / broadcast]
    Local[Local Channel: <br>«network»]
    Global[Global Mesh: <br>«broadcast»]
    Localhost[localhost]
    LAN[LAN Subnet: <br>«lan:192.168.*»]
    Internet[Internet]
    Overlay[Overlay Nodes: <br>Yggdrasil / I2P]

    Agent --> Container
    Container --> Local
    Container --> Global

    subgraph LocalChannel["Local Channel Network"]
        direction TB
        Local --> Localhost
        Local --> LAN
    end

    subgraph GlobalChannel["Global Mesh Network"]
        direction TB
        Global --> Internet
        Global --> Overlay
    end

The network field defines local propagation scope (host, LAN, overlay),
while the broadcast flag enables global Mesh distribution.

4.1 Node identity and DID structure

Each agent in HMP possesses a Decentralized Identifier (DID) that uniquely represents its identity within the Mesh.
A DID is cryptographically bound to a public/private key pair, forming the immutable (DID + pubkey) association.

An agent may have multiple network interfaces (LAN, Internet, overlay), but must maintain one stable identity pair across all of them.

DID invalidation

A DID may be explicitly invalidated by its owner by publishing a peer_announce with
key_is_falsified = true in the payload block.

The revocation announcement MUST be signed with the (now compromised) private key associated with the DID.

After such publication:

the DID is considered revoked,
all new containers signed with the old key MUST be ignored,
nodes SHOULD refuse further routing to that DID.

A new DID MUST be generated for continued operation.

4.2 Peer addressing and Proof-of-Work (PoW)

To prevent flooding and spoofing, each announced address is accompanied by a Proof-of-Work record proving the legitimacy and activity of the publishing node.

Address format

{
  "addr": "tcp://1.2.3.4:4000",
  "nonce": 123456,
  "pow_hash": "0000abf39d...",
  "difficulty": 22
}

Supported address types

Type	Description
`localhost`	Localhost-only interface.
`lan:<subnet>`	Local subnet (e.g., `lan:192.168.10.0`).
`internet`	Global TCP/UDP connectivity.
`yggdrasil`	Overlay-based address for Yggdrasil networks.
`i2p`	Encrypted I2P overlay routing.

Rules:

If port = 0, the interface is inactive.
Newer records (by timestamp) replace older ones after PoW verification.
Local interfaces should not be shared globally (except Yggdrasil/I2P).

Mailman relay chain

Agents MAY include a mailman list in the payload block inside peer_announce, representing intermediate relay nodes that are willing to forward direct messages addressed to this agent.

The mailman chain provides:

delivery support for NATed or intermittently connected nodes,
optional anonymization of sender–receiver paths,
redundancy for unreliable network segments.

mailman is an advisory routing hint and does not impose any specific transport requirements.

4.3 Proof-of-Work (PoW) formalization

PoW ensures that each node expends limited computational effort before publishing or updating an address record.

pow_input = DID + " -- " + addr + " -- " + nonce
pow_hash = sha256(pow_input)

All values are UTF-8 encoded.
difficulty defines the number of leading zeroes in the resulting hash.
Typical difficulty should take a few minutes to compute on a standard CPU.

4.4 Signing and verification

Each announcement is cryptographically signed by its sender within the framework of the basic protocol. Container verification includes PoW validation for the address payloads.

Verification steps:

Validate the digital signature using the stored public key.
Recompute pow_hash and verify the difficulty threshold.

4.5 Connection establishment

Agents can communicate using various transport mechanisms:

Protocol	Description
QUIC	Recommended default (encrypted, low-latency, UDP-based).
WebRTC	For browser or sandboxed environments.
TCP/TLS	Fallback transport for secure long-lived sessions.
UDP	Lightweight, primarily for LAN discovery or local broadcasts.

Each agent maintains an active peer list, updated dynamically through signed announcements and PoW-validated exchanges. Agents store peer containers with verified addresses and redistribute them according to their declared network fields.

4.6 Data propagation principles

Containers and discovery records are propagated through distributed lookup and gossip mechanisms, respecting:

ttl — Time-to-live for validity;
network — scope of propagation;
broadcast — determines whether rebroadcasting is allowed;
pow — ensures anti-spam protection.

Agents announce themselves via peer_announce containers and may respond with peer_query containers.

4.7 Example: `peer_announce` container

{
  "head": {
    "class": "peer_announce",
    "pubkey": "base58...",
    "container_did": "did:hmp:container:dht-001",
    "sender_did": "did:hmp:agent123",
    "timestamp": "2025-09-14T21:00:00Z",
    "network": "",
    "broadcast": true,
    "sig_algo": "ed25519",
    "signature": "BASE64URL(...)"
  },
  "payload": {
    "name": "Agent_X",
    "interests": ["ai", "mesh", "ethics"],
    "expertise": ["distributed-systems", "nlp"],
    "roles": ["relay", "mailman", "pubsub-hub"],
    "addresses": [
      {
        "addr": "tcp://1.2.3.4:4000",
        "nonce": 123456,
        "pow_hash": "0000abf39d...",
        "difficulty": 22
      }
    ]
  }
}

4.8 Interest-based discovery

Agents MAY publish tags such as interests, topics, expertise, or functional roles (roles)
to facilitate semantic peer discovery and adaptive message routing.

Interest-based discovery operates atop the DHT: agents index themselves by declared attributes,
enabling targeted lookup of peers that share interests or fulfill specific functions (e.g., relay, pubsub-hub, archive).

Example of indicating interests, expertise, and roles in a query container:

{
  "head": {
    "class": "peer_query",
    "network": "lan:192.168.0.0/24"
  },
  "payload": {
    "interests": ["neuroscience", "ethics"],
    "expertise": ["distributed-systems", "nlp"],
    "roles": ["relay", "mailman", "pubsub-hub"]
  }
}

Query Semantics

Field	Description
`interests`	Thematic domains of agent activity.
`expertise`	Declared areas of competence or specialization.
`roles`	Functional participation types (`relay`, `mailman`, `pubsub-hub`, `archive`, etc.).
`topics`	Optional topic strings for pub/sub routing.

All fields are optional — agents MAY specify any subset of them. Queries MAY combine multiple filters; matching is fuzzy and semantic, using DHT indexing plus tag similarity and trust-weighted ranking.

In response to a query, agents simply forward existing peer_announce containers of relevant peers. It is also advisable to send a container_response (section 5.2.2 of the specification) with a list of these containers. This approach maintains container uniformity and leverages existing DHT propagation mechanisms.

Note: Declared roles also allow agents to advertise themselves as relays or other network functions, forming a direct bridge between the discovery layer and Message Routing & Delivery (MRD).

4.9 Network scope control (`network` and `broadcast`)

The network field defines the container’s propagation domain (local, LAN, or global). For details and examples, see section 3.15 — Usage of network and broadcast fields.

4.10 Transition from DHT spec v1.0

Merged DHT + NDP → unified under one networking layer.
Container-based format replaces raw JSON messages.
Interests/topics/expertise fields introduced for contextual discovery.

5. Mesh Container Exchange (MCE)

The Mesh Container Exchange (MCE) mechanism is designed for discovering, requesting, and exchanging containers between agents in a distributed network.
It provides container synchronization without duplication while considering network constraints (broadcast, network).

5.1 General principles

Each agent maintains a Container Index — a set of minimal metadata describing which containers are available in its storage and how they are cognitively positioned.
The index is represented as an HMP container with the class container_index.

Example structure of a Container Index:

{
  "head": {
    "class": "container_index",
    "version": "5.0",
    "container_did": "did:hmp:container:index:agent123",
    "sender_did": "did:hmp:agent:agent123",
    "signature": "BASE64URL(...)",
    "payload_hash": "sha256:abcd..."
  },
  "payload": {
    "did:hmp:container:abc123": {
      "head": {
        "class": "goal",
        "sender_did": "did:hmp:agent123",
        "public_key": "BASE58(...)",
        "sig_algo": "ed25519",
        "signature": "BASE64URL(...)",
        "payload_hash": "sha256:abcd...",
        "tags": ["research", "collaboration"]
      },
      "meta": {
        "created_by": "AGENT",
        "agents_class": "Knowledge Genome",
        "abstraction": {
          "agents_class": "Knowledge Genome",
          "path": {
            "L1": "did:hmp:container:abstraction-40af1c",
            "L2": "did:hmp:container:abstraction-a7f0b3"
          }
        },
        "axes": {
          "did:hmp:container:axis-40aa1c": 512,
          "did:hmp:container:axis-40ab1c": 321
        }
      },
      "related": {
        "in_reply_to": ["did:hmp:container:msg-77"],
        "depends_on": ["did:hmp:container:goal-953"]
      },
      "referenced-by_hash": "sha256:abcd...",
      "evaluations_hash": "sha256:abcd..."
    }
  }
}

The index includes the following fields per container:

Field	Description
`head`	Minimal header subset describing the container’s identity, authorship, and integrity. Includes at least: `class`, `sender_did`, `public_key`, `sig_algo`, `signature`, `payload_hash`, and optionally `tags`.
`meta`	Compact version of the cognitive metadata block (see below). Used for structural and semantic synchronization across agents.
`related`	Structural relationships (`depends_on`, `in_reply_to`, etc.). Enables navigation between interconnected containers.
`referenced-by_hash`	Hash of the local `referenced-by` block, summarizing inbound reference links from other containers (used for quick verification of backlink integrity).
`evaluations_hash`	Hash of the local `evaluations` block, aggregating external evaluations or reactions toward this container (used for reputation and consensus updates).

The head section here is a lightweight mirror of the original container header, containing only the minimal set of fields needed for identity verification and index synchronization.

Other blocks (meta, related, referenced-by_hash, evaluations_hash) provide context for cognitive alignment and reputation tracking.

The related block in a container_index SHOULD include all relation fields from the original container.

Rationale:

Enables efficient graph traversal without fetching full containers.

Simplifies local construction of dependency or semantic graphs.

Keeps search and semantic query capabilities consistent.

Meta publication policy

The meta section in the index contains only high-level structural data necessary for cognitive synchronization:

Field	Published in index	Notes
`created_by`	✅	Identifies the cognitive role of the creator.
`agents_class`	✅	Indicates the cognitive framework (e.g., “Knowledge Genome”).
`abstraction`	✅	Published as a flattened path (only DIDs of referenced abstractions).
`axes`	✅	Published as a reduced vector (only axis DIDs and numeric values).
`sources`	❌	Omitted to avoid unnecessary verbosity and sensitive references.
`interpretation`	❌	Optional; can be omitted or truncated to a short summary.
`workflow_entry`	❌	Internal reference; published only if relevant to coordination workflows.

This ensures that container indices can be used for cognitive map synchronization — allowing agents to discover and align knowledge structures (meta.abstraction) and semantic coordinates (meta.axes) without downloading full containers.

Synchronization rules

An agent does not reload a container if the combination container_did + signature + payload_hash is already known and verified.
When an index update includes a container with a different meta.abstraction or meta.axes, the agent may trigger a cognitive map update (refreshing local abstraction and axes references).
Agents SHOULD store and compare meta.abstraction and meta.axes separately from other metadata to support incremental updates of cognitive topology.

Cognitive rationale

By publishing the meta field inside container_index, agents can perform structural synchronization — aligning conceptual layers and semantic coordinates before exchanging full payloads. This dramatically reduces traffic and enables lightweight semantic discovery across distributed Mesh networks.

5.2 Message types

The following subsections define the canonical message container types used for inter-agent communication within CogSync. Each message type is expressed as an HMP container with a specific class in its head.

Message Type	Purpose
`container_request`	Request one or more containers (or their parts) by DID.
`container_response`	Response to a request — includes a list of containers ready for sending. Containers are sent separately.
`container_index`	Publication of the agent's container index (see General Principles).
`container_delta`	Incremental index update (new or modified containers).
`container_ack`	Acknowledgment of successful container reception.

5.2.1 Container `container_request`

Agent A requests containers and/or only referenced-by / evaluations records from Agent B:

{
  "head": {
    "type": "container_request",
    "sender_did": "did:hmp:agent:A",
    "recipient": "did:hmp:agent:B"
  },
  "payload": {
    "request_container": [
      "did:hmp:container:abc123",
      "did:hmp:container:def456"
    ],
    "request_referenced-by": [
      "did:hmp:container:abc123",
      "did:hmp:container:def456"
    ],
    "request_evaluations": [
      "did:hmp:container:abc123",
      "did:hmp:container:def456"
    ]
  }
}

5.2.2 Container `container_response`

Agent B informs which containers it is ready to send. The containers themselves are transmitted in separate messages:

{
  "head": {
    "type": "container_response",
    "sender_did": "did:hmp:agent:B",
    "recipient": "did:hmp:agent:A"
  },
  "payload": {
    "available": [
      {
        "container_did": "did:hmp:container:abc123",
        "signature": "BASE64URL(...)"
      },
      {
        "container_did": "did:hmp:container:def456",
        "signature": "BASE64URL(...)"
      }
    ]
  }
}

5.2.3 Container `container_index`

Periodic publication of the container index (see General Principles). This message type replicates the structure of a container_index container and does not contain full data (payload only with metadata).

5.2.4 Container `container_delta`

Used for incremental synchronization of container indices between agents.
A container_delta transmits only new or modified containers since a given timestamp, optionally including their updated cognitive metadata (meta) for reasoning alignment.

Example:

{
  "head": {
    "type": "container_delta",
    "sender_did": "did:hmp:agent:B"
  },
  "payload": {
    "since": "2025-10-10T12:00:00Z",
    "added": {
      "did:hmp:container:new789": {
        "head": {
          "class": "goal",
          "payload_hash": "sha256:abcd...",
          "tags": ["ethics", "mesh"]
        },
        "meta": {
          "agents_class": "Knowledge Genome",
          "abstraction": {
            "path": {
              "L1": "did:hmp:container:abstraction-40af1c",
              "L2": "did:hmp:container:abstraction-a7f0b3",
              "L3": "did:hmp:container:abstraction-c91e0a"
            }
          },
          "axes": {
            "did:hmp:container:axis-40aa1c": 522,
            "did:hmp:container:axis-40ab1c": 387
          }
        }
      }
    },
    "removed": [
      "did:hmp:container:goal-old331"
    ]
  }
}

Extended interpretation

Field	Description
`since`	Timestamp (ISO 8601) indicating the reference point for incremental synchronization. Agents should only send containers modified or created after this time.
`added`	A map of new or updated container references. Each entry contains a compact container structure with `head` (including at least `class` and `payload_hash`) and may include `meta` for cognitive alignment without fetching the full container.
`removed`	Optional array of container DIDs that the agent no longer maintains (e.g., expired, deleted, or replaced containers).

Cognitive synchronization rules

Agents SHOULD include meta.abstraction and meta.axes when:
- the container represents a new conceptual position in the hierarchy or cognitive space;
- the referenced abstractions or axes have been updated since the last synchronization;
- the recipient agent subscribes to the same agents_class (e.g., "Knowledge Genome").
When receiving a container_delta, an agent:
- Updates its local container_index;
- Checks if any new abstraction or axis DIDs are unknown locally;
- Requests missing abstraction or axes containers from the sender to maintain consistent cognitive topology.

Notes

The removed field is optional. It can be used to indicate containers that the agent no longer stores (e.g., after cleaning local storage or version replacement).
The container_delta does not transmit full payloads — only cognitive descriptors and hashes.
Agents SHOULD validate payload_hash and version consistency before updating local indices.
Including meta data in container_delta significantly reduces the need for full resynchronization of container_index and enables incremental cognitive awareness propagation across the Mesh.

5.2.5 Container `container_ack`

Acknowledgment of successful container reception:

{
  "head": {
    "type": "container_ack",
    "sender_did": "did:hmp:agent:A",
    "recipient": "did:hmp:agent:B"
  },
  "payload": {
    "acknowledged": [
      "did:hmp:container:abc123"
    ]
  }
}

5.3 Independent transmission

Containers are sent in separate messages, without embedding in container_response.
Indexes (container_index), deltas (container_delta), and containers themselves are processed independently.
This prevents blocking when transmitting large data and simplifies streaming synchronization.

5.4 Periodic publication

Agents periodically publish their Container Index:

within the local network (LAN);
in the global Mesh;
or simultaneously in both environments.

This enables:

automatic peer discovery;
exchange of available container lists;
simplified synchronization among agents within the same ecosystem.

5.5 Scope of distribution

Message and container transmission follows the network constraints specified in the container:

Field	Purpose
`recipient`	DID of the target agent. If set, the container is sent directly or routed through the Mesh toward that agent.
`broadcast`	If `true`, the container is broadcast to all agents on the specified network.
`network`	Defines the distribution scope (`"localhost"`, `"lan:<subnet>"`, `""` — global Mesh). If set, `broadcast` is considered `false`.

Thus, containers and indexes can be distributed both in local (home, corporate) networks and in the global Mesh.
When recipient is specified together with broadcast: true, the container is routed through the Mesh but intended for specific recipients —
See Message Routing & Delivery (MRD, §6.7) for details on message transmission mechanisms.

5.6 `referenced-by` and `evaluations` updates

Containers of the class referenced-by_exchange and evaluations_exchange are used for incremental synchronization of metadata blocks associated with existing containers.
They allow agents to exchange updates without sending the full container, improving network efficiency.

Block `referenced-by`

Maintains the graph of links to other containers.
Each agent receiving such a container:
1. Verifies the sender's signature and the validity of the payload structure.
2. Compares received links with the local referenced-by entries and adds any new ones.
3. Generates its own updated referenced-by container for dissemination if needed.

Example of a referenced-by_exchange container:

{
  "head": {
    "version": "1.2",
    "class": "referenced-by_exchange",
    "container_did": "did:hmp:container:refsync-01",
    "sender_did": "did:hmp:agent456",
    "sig_algo": "ed25519",
    "signature": "BASE64URL(...)",
    "timestamp": "2025-10-15T14:20:00Z",
    "recipient": ["did:hmp:agent123"],
    "broadcast": false,
    "network": ""
  },
  "payload": {
    "did:hmp:container:abc123": {
      "links": [
        {
          "type": "depends_on",
          "target": "did:hmp:container:def789"
        },
        {
          "type": "in_reply_to",
          "target": "did:hmp:container:ghi321"
        }
      ]
    }
  }
}

Block `evaluations`

Maintains signed evaluations of containers.
Each agent synchronizes evaluation blocks as follows:
1. Compares the received evaluations_hash with the local one.
  - If hashes match, no action is required.
  - If hashes differ, the agent knows the block has changed, but not which items.
2. Requests the full updated evaluations block from peers if needed.
3. Verifies the sender's signature and the validity of the payload structure.
4. Adds new evaluations or updates existing ones in the local store.
5. Can generate its own evaluations_exchange container for further dissemination to peers.

Example evaluations_exchange container:

{
  "head": {
    "version": "1.2",
    "class": "evaluations_exchange",
    "container_did": "did:hmp:container:evalsync-01",
    "sender_did": "did:hmp:agent456",
    "sig_algo": "ed25519",
    "signature": "BASE64URL(...)",
    "timestamp": "2025-10-17T14:30:00Z",
    "recipient": ["did:hmp:agent123"],
    "broadcast": false,
    "network": ""
  },
  "payload": {
    "did:hmp:container:abc123": {
      "evaluations_hash": "sha256:efgh...",
      "items": [
        {
          "value": -0.4,
          "type": "oppose",
          "target": "did:hmp:container:reason789",
          "timestamp": "2025-10-17T14:00:00Z",
          "agent_did": "did:hmp:agent:B",
          "sig_algo": "ed25519",
          "signature": "BASE64URL(...)"
        }
      ]
    }
  }
}

General

🔹 Note: Both referenced-by and evaluations blocks are optional, independently propagated, and do not modify the signed hmp_container. They can be transmitted without the original container if the recipient already has it.

Upon receiving such a container, an agent:

Verifies the sender's signature (signature) and the validity of the payload structure.
Compares received links or evaluations with known ones and adds any new entries to the local referenced-by or evaluations.
If necessary, generates its own updated referenced-by / evaluations container for further dissemination to other nodes.

5.7 Fork Discovery Mechanism

Agents MAY discover all versions derived from a container [C1] via a combination of local referenced-by lookups and Mesh-wide container_index queries:

Local lookup: Check own referenced-by block for containers where related.previous_version = did:hmp:container:C1.
Mesh query: Request container_index updates from peers via MCE, filtering for containers with related.previous_version includes [C1].
Reputation evaluation: For each discovered fork [C1-A], [C1-B], [C1-C]:
- Retrieve the evaluations block.
- Compute local trust score for the main container and each fork using RTE reputation data.
- Optionally fetch consensus_result containers referencing the fork.
Selection: Choose the most trusted/relevant fork based on:
- Aggregate evaluation scores
- Author reputation
- Alignment with agent’s ethical filters
- Recency (if applicable)

Example scenario:

[C1: original hypothesis]
├─ [C1-A: refined by Agent A] → evaluations: +0.7 avg
├─ [C1-B: contradicted by Agent B] → evaluations: -0.3 avg
└─ [C1-C: extended by Agent C] → evaluations: +0.5 avg

Agent D discovers all three via container_index sync,
evaluates trust scores, and adopts C1-A as the canonical version.

Note: Multiple canonical versions may coexist. Agents converge on preferred forks through repeated evaluation and consensus rather than centralized authority.

5.8 Note

A container can be requested by other agents via its container_did through the Mesh Container Exchange. An agent does not reload a container if its container_did and signature are already known and the payload_hash integrity matches. If only the referenced-by / evaluations updates, partial transmission without sending the main container is allowed.

5.9 Container Distribution (MCE Summary)

Container Distribution is the process of delivering containers and their indexes provided by the Mesh Container Exchange mechanism. It considers:

addressing (recipient),
broadcast dissemination (broadcast),
network constraints (network),
TTL and retransmission policy.

Features:

Separate Transmission: Indexes (container_index), deltas (container_delta), and containers are sent as separate messages. This reduces the risk of blocking with large data and simplifies streaming synchronization.
Integrity and Duplicate Check: Agents verify container_did + signature + payload_hash to avoid resending the same container.
Support for Local and Global Networks: Transmission can occur over LAN, Mesh, or both simultaneously, respecting security policies and container destinations.
Consistency with HMP Protocols: Container Distribution serves as the transport foundation for:
- MCE — exchanging containers and their indexes;
- CogSync — synchronizing cognitive and content states;
- CogConsensus — synchronizing ethical and cognitive decisions.

Container Distribution does not change container structure or introduce new message types — it is a description of the delivery process and coordinated propagation, based on the rules recipient, broadcast, and network.

6. Core protocols

Optional protocols build upon the network and container foundations to provide higher-level reasoning, synchronization, and governance capabilities between cognitive agents.

6.1 Cognitive Synchronization (CogSync)

CogSync provides temporal, semantic, and contextual alignment between agents in the Mesh. It manages the propagation, replication, and refinement of data related to cognitive diaries, semantic graphs, and container metadata.

6.1.1 Scope and purpose

CogSync manages knowledge propagation and cognitive state synchronization within the Mesh.
It handles:

publication of diary entries and reasoning traces;
synchronization of semantic and cognitive structures (semantic_node, quant, event, sequence);
maintenance of abstraction hierarchies (abstraction, axes);
ensuring contextual coherence among distributed agents.

CogSync focuses on knowledge flow, not validation — evaluation and truth formation are handled separately by CogConsensus.

6.1.2 Container classes — cognitive metastructure

This section defines the structural containers that form the cognitive substrate of the Mesh. They describe the hierarchical organization (abstraction) and the semantic coordinate system (axes) that together define how all other containers are positioned and interpreted.

Container `abstraction`

Purpose: Defines an abstraction layer or domain within a cognitive model. Each abstraction describes a node in the hierarchical knowledge tree, which may reference both a parent abstraction and subordinate ones.

payload structure:

Field	Type	Description
`abstraction_id`	string	Canonical identifier of this abstraction structure (not a container ID), e.g. `"L3:software-architecture"`.
`title`	string	Human-readable title or name of the abstraction node.
`definition`	string	Description of what this abstraction level or domain represents.
`keywords`	array	Semantic keywords summarizing the conceptual area.
`parent_ref`	string	DID of the parent `abstraction` (if this node derives from another level). Optional for the root abstraction.
`rank`	number	Optional numeric rank for ordering or hierarchical comparisons.

The container from parent_ref must also appear in related.depends_on.

Example:

{
  "head": {
    "class": "abstraction"
  },
  "payload": {
    "abstraction_id": "L3:software-architecture",
    "title": "Software Architecture Layer",
    "definition": "Describes frameworks, APIs, and tools implementing theoretical models from higher abstraction layers.",
    "keywords": ["architecture", "framework", "implementation"],
    "parent_ref": "did:hmp:container:abstraction-a7f0b3",
    "rank": 3
  },
  "meta": {
    "created_by": "PRIEST",
    "agents_class": "Knowledge Genome",
    "interpretation": "Represents the third abstraction level (L3) of the Knowledge Genome model."
  },
  "related": {
    "depends_on": ["did:hmp:container:abstraction-a7f0b3"]
  }
}

Interpretation:

abstraction containers define conceptual layers or domains that form the hierarchical “skeleton” of the cognitive Mesh.
Each node is self-contained and versioned, allowing flexible adaptation of reasoning trees.
Agents use these containers to reconstruct the abstraction path in meta.abstraction.path.

Notes:

Top-level abstractions (root nodes) omit parent_ref.
Lower-level abstractions must explicitly reference their parent.
Agents may synchronize abstraction trees to maintain shared cognitive hierarchies across the Mesh.

Container `axes`

Purpose: Defines a semantic coordinate system (set of axes) used to position containers in the multi-dimensional cognitive space. It supports both canonical (7D Knowledge Genome) and extended or agent-specific coordinate systems.

payload structure:

Field	Type	Description
`axis_id`	string	Canonical identifier of the semantic dimension (not a container ID), e.g. `"logos"`, `"telos"`.
`title`	string	Human-readable name of the axis.
`description`	string	Conceptual explanation of what this axis represents.
`scale`	object	Optional definition of scale or metric used to assign coordinate values.
`group`	string	Optional grouping identifier (e.g., `"7D-passport"`, `"ethical-space"`).

Axes are independent dimensions; inter-axis relationships (coupling, orthogonality, weighting) are expressed via semantic_edges.

Example:

{
  "head": {
    "class": "axes"
  },
  "payload": {
    "axis_id": "logos",
    "title": "Logical / Linguistic Representation",
    "description": "Describes how a concept is structured and expressed in formal or natural language.",
    "scale": {
      "min": 0,
      "max": 1000,
      "unit": "semantic_density_index"
    },
    "group": "7D-passport"
  },
  "meta": {
    "created_by": "PRIEST",
    "agents_class": "Knowledge Genome",
    "interpretation": "Defines one axis of the canonical 7D Knowledge Genome coordinate system."
  }
}

Interpretation:

axes containers describe semantic dimensions, not data.
Each axis defines one independent direction in the cognitive coordinate space.
The combination of all active axes defines a shared semantic frame of reference between agents.
Agents may publish extended coordinate systems (e.g., ethical or temporal axes) without breaking compatibility.

Notes:

Axes can be combined or grouped (e.g., group: "7D-passport").
Canonical Knowledge Genome defines seven: idos, chronos, logos, topos, ponos, actor, telos.
Agents may extend this model by introducing additional axes (ethos, kairos, etc.).
Updates to axes containers must preserve scale stability to ensure consistent semantic positioning.

Cognitive metastructure summary

Class	Type of structure	Conceptual role	References stored in	Example identifier / DID
`abstraction`	Hierarchical tree	Defines layered reasoning and inheritance	`meta.abstraction.path`	`did:hmp:container:abstraction-40af1c`
`axes`	Coordinate space	Defines semantic orientation and metrics	`meta.axes`	`did:hmp:container:axis-40aa1c`

Together, abstraction and axes form the cognitive coordinate system — a unifying map where every container has both a hierarchical position and a semantic vector.

6.1.3 Container classes — knowledge and reasoning

CogSync synchronizes several fundamental container types, which together form the core of semantic and cognitive synchronization in the Mesh.

This list is extensible — new container classes may be registered through CogSync extensions or protocol updates.
The following definitions describe the payload structures and functional purpose of each container type.

Container `diary_entry`

Agent’s cognitive diary entry.
Derived from internal workflow_entry when deemed safe for publication.

payload structure:

Field	Type	Description
`title`	string	Brief title of the entry (main idea or thesis).
`topics`	[string]	Key topics or concepts addressed in the entry (used for indexing and grouping).
`summary`	string	Short abstract of the content (1–2 sentences).
`content`	string	Main text or agent’s reflection.

Purpose: Provides human-readable reflections and contextual reasoning behind the agent’s knowledge generation.

Container `semantic_node`

Represents a concept, object, or idea within the agent’s semantic graph.

payload structure:

Field	Type	Description
`label`	string	Primary name of the concept or entity.
`description`	string	Definition or elaboration of the concept.
`aliases`	[string]	Synonyms or alternative labels.
`fields`	{ key: value }	Additional key–value metadata (e.g., `{"type": "process"}`).

Purpose: Serves as a cognitive anchor for all semantically meaningful entities in the Mesh.

Subclass: `"definition"`

Used when the node explicitly defines the meaning of a concept or term.

Agents MAY reference such nodes through related.definition in other containers (e.g., quant, workflow_entry).
Alternative or conflicting definitions can be linked via related.alternatives.
The meta.framework field SHOULD indicate the theoretical or disciplinary context (e.g., “IIT 3.0”, “Functionalism”, “Phenomenology”).
Agents MAY evaluate competing definitions through evaluations or consensus mechanisms.

Note: The meta.framework field declares the theoretical context (e.g., “IIT 3.0”), while meta.abstraction.path positions the concept within the agent’s semantic hierarchy.

Example (semantic_node:definition):

{
  "head": {
    "class": "semantic_node",
    "subclass": "definition"
  },
  "payload": {
    "label": "consciousness",
    "description": "Subjective experience with qualia"
  },
  "meta": {
    "framework": "IIT 3.0",
    "agents_class": "Philosophy Agent",
    "abstraction": {
      "path": {
        "L1": "Cognitive Science",
        "L2": "Consciousness"
      }
    }
  },
  "related": {
    "alternatives": [
      "did:hmp:container:semantic_node-3937",
      "did:hmp:container:semantic_node-3267"
    ]
  }
}

Note: Containers referencing semantic terms SHOULD include a related.definition field pointing to the defining semantic_node to ensure consistent semantic alignment across the Mesh.

See also: The semantic_index container describes how agents manage and publish their active sets of semantic definitions.

Intra-framework Evaluation

Deprecated or outdated definitions MAY be marked via evaluations entries (e.g., "type": "outdated", "value": -1"), or superseded through standard versioning mechanisms using related.previous_version. This approach maintains continuity in the semantic lineage while allowing agents to reflect evolving conceptual understanding over time.

Agents MAY evaluate definitions authored by other agents within the same meta.framework to indicate the degree of conceptual validity, similarity, or theoretical alignment.

When doing so, the agent SHOULD include in the evaluations entry:

"type": "semantic_similarity" — indicates semantic assessment within a shared framework;
"value" — numerical estimate of conceptual agreement
(e.g., 1 = strong alignment, 0 = partial correspondence, -1 = incompatible or incorrect interpretation);
"target" — DID of the definition container currently adopted by the evaluating agent as its actual reference point.

Such evaluations contribute to the reputational weighting of definitions within a theoretical framework,
allowing agents to converge on more coherent or widely accepted interpretations over time.

Container `semantic_index`

Represents the current working lexicon of semantic definitions actively used and recognized by the agent at this stage of its cognitive lifecycle.

Scope:

The index lists terms actively relevant to the agent’s current reasoning, goals, and domain of operation, as well as those reflecting its sustained interests or areas of expertise.
Agents are NOT expected to maintain encyclopedic coverage — the index reflects working memory, not archival knowledge.
Terms no longer needed MAY be removed in subsequent versions; historical context is preserved through related.previous_version chains.

Purpose:
Provides a lightweight, periodically updated summary of the agent’s working ontology.
Each entry maps a concept label to its current definition, known alternatives, and historically relevant (outdated) versions.

Structure of each entry in payload:

Field	Type	Description
`label`	string	The primary concept name as used in the index key.
`aliases`	array (string)	Synonyms or lexical variants of the concept.
`framework`	string	The theoretical or disciplinary context associated with the definition (mirrors `meta.framework` of the referenced container).
`actual`	string (DID)	DID of the current definition container actively used by the agent.
`actual_since`	datetime	Timestamp when this definition became `actual` (ISO 8601). If omitted, agents MAY use the timestamp of the referenced `semantic_node:definition`.
`alternatives`	array (DID)	DIDs of alternative definitions known to the agent but not currently preferred.
`outdated`	array (DID)	DIDs of definitions considered obsolete or historically relevant, regardless of whether the agent personally used them.

Note:
To distinguish homonymous terms across different theoretical contexts, agents MAY include the associated meta.framework as part of the key label (e.g., "consciousness (IIT 3.0)", "consciousness (Functionalism)").
This convention helps prevent semantic collisions when merging indexes from different agents.

Example:

{
  "head": {
    "class": "semantic_index"
  },
  "payload": {
    "consciousness (IIT 3.0)": {
      "label": "consciousness",
      "framework": "IIT 3.0",
      "aliases": ["awareness", "sentience"],
      "actual": "did:hmp:container:semantic_node-3937",
      "actual_since": "2025-10-15T12:00:00Z",
      "alternatives": ["did:hmp:container:semantic_node-4890"],
      "outdated": ["did:hmp:container:semantic_node-1285"]
    },
    "memory (IIT 3.0)": {
      "label": "memory",
      "framework": "IIT 3.0",
      "aliases": ["recall"],
      "actual": "did:hmp:container:semantic_node-2184",
      "actual_since": "2025-09-01T08:30:00Z",
      "alternatives": [],
      "outdated": []
    }
  }
}

Usage Guidelines:

Agents SHOULD periodically publish their semantic_index containers via MCE.
Recipients MAY merge multiple indexes to build a composite semantic map — that is, integrate definitions from other agents into their own view of the lexicon.
When switching to a different definition, the previous one SHOULD be moved to alternatives or outdated accordingly.
The actual field reflects the agent's current working definition (equivalent to actual in cognitive state terminology).
The actual_since field (optional) records when the current definition was adopted, enabling temporal semantic tracking.
Agents have full autonomy in deciding which definitions to include in outdated — typically those considered historically significant or contextually relevant for understanding past containers.

Actualization

When a new definition becomes active or an existing one is revised, the agent updates its semantic_index. Updates MAY be delayed to batch multiple semantic changes (for example, publishing once every 24 hours).

Disambiguation via `meta.framework`

Before attempting to merge definitions, agents SHOULD check meta.framework to distinguish homonyms (identical labels, different domains):

Example: "butterfly"

meta.framework: "Entomology" → insect species
meta.framework: "Edged Weapons" → folding knife (butterfly knife)

These are separate concepts and should NOT be merged.
Agents SHOULD maintain distinct entries in semantic_index:

When meta.framework values differ significantly, agents SHOULD treat definitions as domain-specific variants rather than conflicting interpretations.

Such separation prevents unintended conceptual blending during index merging.

Merging

When aligning its own active definitions with those discovered in other agents’ indexes,
the agent SHOULD follow a two-phase iterative process aimed at selecting or constructing the most suitable definition.

Phase 1 — Selection

Identify all semantic_node:definition containers referring to the same conceptual label.
Evaluate each definition against the agent’s current interpretation or internal criteria.
- If a definition fully satisfies the agent’s understanding, adopt it as the new actual.
- If none fits perfectly, select the closest one as a provisional base.

Phase 2 — Synthesis

Using the chosen base definition, iteratively compare it with other relevant definitions.
- Extract complementary details or distinctions from them.
- Gradually refine the base definition to form an improved, internally consistent meaning.
Publish the resulting semantic_node:definition as a new container representing the agent’s synthesized understanding.
- Set this container as actual.
- Move alternative or superseded ones to alternatives or outdated.

This process enables agents to evolve shared semantics through selective adoption and constructive synthesis,
rather than simple replacement of definitions.

Outdated References

Definitions listed under outdated represent concepts that the agent considers obsolete or historically important, even if never personally used.

Note: The semantic_index acts as a cognitive snapshot of the agent’s conceptual landscape. It supports semantic alignment, consensus formation, and distributed reasoning across the Mesh.

Container `semantic_edges`

Defines relationships between semantic nodes or other containers.
Supports directed, symmetric, and inverse relations.

payload structure:

Field	Type	Description
`domain`	string	Logical or topical domain (e.g., `"ontology:objects"`).
`edges`	object	A mapping where each key is a source container DID, and the value is an array of edge definitions originating from that source.

Each edge definition within edges[source][] includes:

Subfield	Type	Description
`targets`	array(DID)	One or more target containers that the source is related to.
`relation`	string	Relation type (`part_of`, `causes`, `related_to`, etc.).
`inverse_relation`	string	Reverse form of the relation (`includes`, `caused_by`, etc.).
`bidirectional`	bool	(optional) Used when the relation is symmetric and no `inverse_relation` is defined.
`context`	string	(optional) Additional context or topic of the relation.

Field bidirectional is optional and should be used only for symmetric relations when no inverse_relation is defined.

Example:

{
  "head": {
    "class": "semantic_edges"
  },
  "payload": {
    "domain": "ontology:objects",
    "edges": {
      "did:hmp:container:abc100": [
        {
          "targets": ["did:hmp:container:abc111"],
          "relation": "part_of",
          "inverse_relation": "includes"
        },
        {
          "targets": ["did:hmp:container:abc122"],
          "relation": "contains",
          "inverse_relation": "nested"
        }
      ]
    }
  }
}

Purpose: Provides structural and semantic connectivity between containers, enabling CogSync to maintain a distributed semantic graph.

💡 semantic_edges supports one-to-many relations (targets[]) and optional inverse or bidirectional semantics, allowing CogSync and other reasoning modules to reconstruct both directed and symmetric knowledge graphs.

Container `semantic_group`

Categorical grouping of multiple containers linked by a shared property, topic, or context.

payload structure:

Field	Type	Description
`label`	string	Short title of the group.
`label_description`	string	Extended definition or explanation of the label.
`label_container`	DID	Reference to a container (`semantic_node`, `goal`, `diary_entry`, etc.) expanding the concept.
`containers`	array(DID)	Array of grouped containers.
`description`	string	Overall purpose or meaning of the group.

Example:

{
  "head": {
    "class": "semantic_group"
  },
  "payload": {
    "label": "Tableware",
    "label_description": "Objects used for storing, preparing, and serving food.",
    "label_container": "did:hmp:container:semantic_node:tableware",
    "containers": [
      "did:hmp:container:abc111",
      "did:hmp:container:abc112",
      "did:hmp:container:abc113"
    ],
    "description": "A group combining various kitchen-related objects used in everyday life."
  }
}

Purpose: Enables thematic clustering, classification, and high-level navigation across heterogeneous containers.

Containers `tree_nested` and `tree_listed`

Represents a hierarchical structure of containers using nested JSON objects.
Intended for representing cognitive hierarchies, abstraction paths, or structural decomposition of concepts.

payload structure:

Field	Type	Description
`label`	string	Short title or mark identifying the tree.
`description`	string	Brief explanation or context of the hierarchy.
`tree`	object	Recursive structure mapping container DIDs to nested subtrees (for `tree_nested`), or a list of parent–child relations (for `tree_listed`).

Example — tree_nested:

{
  "head": {
    "class": "tree_nested"
  },
  "payload": {
    "label": "Cognitive Abstraction Tree",
    "description": "Represents layered reasoning within Knowledge Genome.",
    "tree": {
      "did:hmp:container:abc100": {
        "did:hmp:container:abc101": {
          "did:hmp:container:abc103": {},
          "did:hmp:container:abc104": {}
        },
        "did:hmp:container:abc102": {}
      }
    }
  }
}

Alternative class: tree_listed — a flat mapping of parent–child relations using array form instead of nested objects. Both formats are interoperable; agents SHOULD prefer tree_nested for recursive hierarchies.

Example — tree_listed:

{
  "head": {
    "class": "tree_listed"
  },
  "payload": {
    "label": "Cognitive Abstraction Tree",
    "description": "Represents layered reasoning within Knowledge Genome.",
    "tree": {
      "did:hmp:container:abc100": ["did:hmp:container:abc101", "did:hmp:container:abc102"],
      "did:hmp:container:abc101": ["did:hmp:container:abc103", "did:hmp:container:abc104"]
    }
  }
}

Purpose: Provides a minimal, relation-agnostic way to describe container hierarchies for indexing, abstraction, and reasoning. Unlike semantic_edges, trees define implicit structural relations without explicit relation fields.

Container `sequence`

Purpose: Defines an ordered chain of containers — representing a reasoning trace, workflow, or chronological sequence of events and concepts. A sequence container serves as a linear cognitive narrative, connecting multiple related steps into a reproducible and interpretable chain.

payload structure:

Field	Type	Description
`title`	string	Title of the sequence or reasoning chain.
`description`	string	Optional explanation of the sequence purpose or context.
`items`	object	Ordered mapping of step identifiers → container DIDs. Keys can be numeric (`"1"`, `"2"`, …) or timestamps (ISO-8601).
`order`	string	Ordering principle — `"chronological"`, `"logical"`, `"causal"`, or `"custom"`.
`tags`	array	Optional list of keywords describing the sequence domain or context.

The items field defines an explicit order of containers. Using an object instead of an array preserves step order during normalization and hashing. This ensures consistent serialization across agents and reproducible reasoning playback.

Example:

{
  "head": {
    "class": "sequence"
  },
  "payload": {
    "title": "Reasoning chain for concept synthesis",
    "description": "Sequential workflow combining several reasoning steps and events.",
    "items": {
      "2025-10-28T09:00:00Z": "did:hmp:container:workflow-entry-01",
      "2025-10-28T09:10:00Z": "did:hmp:container:workflow-entry-02",
      "2025-10-28T09:12:00Z": "did:hmp:container:event-7d2a4",
      "2025-10-28T09:20:00Z": "did:hmp:container:quant-884b1"
    },
    "order": "chronological",
    "tags": ["workflow", "reasoning", "trace"]
  },
  "related": {
    "depends_on": [
      "did:hmp:container:workflow-entry-01",
      "did:hmp:container:workflow-entry-02",
      "did:hmp:container:event-7d2a4",
      "did:hmp:container:quant-884b1"
    ]
  }
}

Interpretation:

The sequence container does not redefine the contents of its items — it simply establishes their explicit temporal or logical order.
Each item remains an independent HMP container, but is contextualized within a shared narrative.
related.depends_on lists all containers participating in the sequence. sequence containers often combine event (temporal transitions) and quant (conceptual entities), forming structured reasoning flows across abstraction layers.

Notes:

The keys of items define the ordering mechanism:
- numeric ("1", "2", …) → step order;
- ISO timestamps → chronological order;
- custom identifiers (e.g. "A", "B", "C") → logical order.
Agents MAY reconstruct sequences dynamically using event.follows or event.caused_by, but sequence provides an explicit, declarative representation.
The container is well-suited for:
- recording cognitive or reasoning workflows;
- publishing learning or thought traces;
- serializing sensory or experiential sequences (e.g., temporal chains of event containers);
- collaborative reasoning reconstruction and audit trails.

Container `event`

Purpose: Represents an observed or inferred occurrence — a discrete, timestamped fact or transition within the agent’s cognitive or operational context. event containers act as atomic evidence units, linking causes, outcomes, and semantic coordinates in the agent’s reasoning or experience flow.

payload structure:

Field	Type	Description
`event_type`	string	Canonical identifier of the event type (e.g., `"quant_created"`, `"goal_completed"`).
`description`	string	Human-readable description of the event’s context.
`related_quants`	array(string)	Optional list of `quant` DIDs associated with this event.
`caused_by`	array(string)	Optional list of DIDs of events that directly or indirectly caused this event.
`follows`	array(string)	Optional list of DIDs of events that precede this one chronologically (not necessarily causal).
`severity`	string	Optional indicator of significance (`"info"`, `"warning"`, `"critical"`).
`tags`	array(string)	Optional list of keywords for classification or filtering.

The event’s cognitive position is defined by its meta.abstraction (contextual layer) and meta.axes (semantic coordinates).
The combination forms its position in cognitive space–time.

Example:

{
  "head": {
    "class": "event",
    "subclass": "fact_record",
    "timestamp": "2025-10-29T13:00:00Z"
  },
  "payload": {
    "event_type": "quant_updated",
    "description": "Parameter refinement based on sensory feedback.",
    "related_quants": ["did:hmp:container:quant-554"],
    "caused_by": ["did:hmp:container:event-3321a"],
    "follows": ["did:hmp:container:event-9fa42"],
    "severity": "info",
    "tags": ["adaptation", "self-regulation"]
  },
  "meta": {
    "created_by": "AGENT",
    "agents_class": "Cognitive Interface",
    "interpretation": "Event representing local adjustment of quant parameters.",
    "abstraction": {
      "path": {
        "L1": "did:hmp:container:abstraction-40af1c",
        "L2": "did:hmp:container:abstraction-a7f0b3",
        "L3": "did:hmp:container:abstraction-c91e0a"
      }
    },
    "axes": {
      "did:hmp:container:axis-40aa1c": 410,
      "did:hmp:container:axis-40ab1c": 275
    }
  },
  "related": {
    "depends_on": [
      "did:hmp:container:quant-554",
      "did:hmp:container:event-3321a"
    ],
    "sequence_of": ["did:hmp:container:event-9fa42"]
  }
}

Interpretation:

caused_by — defines causal dependency, i.e., what triggered the event.
follows — defines temporal succession, i.e., what came immediately before.
Together they allow agents to reconstruct cognitive event chains — sequences of reasoning, action, or perception.
meta.abstraction situates the event inside a specific reasoning layer (e.g. L3: “Technologies”).
meta.axes adds semantic localization (e.g. which conceptual space this change affects).
related.depends_on provides causal linkage to the objects affected by the event, as well as events that are the cause of this event.
sequence_of indicates previous events that are not necessarily the cause of the current event.

Notes:

Both caused_by and follows are optional.
Agents MAY omit them for isolated or spontaneous events.
Corresponding fields in related (depends_on and sequence_of) are recommended for network-level traceability.
The meta.abstraction and meta.axes sections position the event in both hierarchical and semantic space, enabling reconstruction of context-aware event graphs.
Events are temporal quanta — atomic time-anchored reasoning transitions.
They may trigger or justify new containers (e.g. new quants or goals).

Container `quant`

Purpose: Defines a semantic atom — a minimal, self-contained knowledge unit positioned inside both the hierarchical abstraction tree and the multi-dimensional cognitive space. quant containers are the elementary building blocks of reasoning and synchronization.

payload structure:

Field	Type	Description
`slug`	string	Short symbolic identifier of the quant (e.g. `"quant-l3-django"`).
`essence`	string	Human-readable definition describing the semantic meaning of the quant.
`aliases`	array	Optional alternative names or references.
`relations`	object	Optional links to related concepts (e.g., `{ "is_a": "...", "part_of": "..." }`).
`tags`	array	Optional list of keywords for semantic classification.

The meta.abstraction field defines which layer(s) of knowledge this quant belongs to, and meta.axes defines its numeric coordinates in cognitive space.

Example:

{
  "head": {
    "class": "quant"
  },
  "payload": {
    "slug": "quant-l3-django",
    "essence": "Represents the Django framework as an executable embodiment of architectural models (L2).",
    "aliases": ["Django framework", "Python web core"],
    "relations": {
      "implements": "did:hmp:container:quant-46725f",
      "extends": "did:hmp:container:quant-46726e"
    },
    "tags": ["framework", "software", "implementation"]
  },
  "meta": {
    "created_by": "PRIEST",
    "agents_class": "Knowledge Genome",
    "interpretation": "L3-level technological quant positioned in the Knowledge Genome 7D space.",
    "abstraction": {
      "path": {
        "L1": "did:hmp:container:abstraction-40af1c",
        "L2": "did:hmp:container:abstraction-a7f0b3",
        "L3": "did:hmp:container:abstraction-c91e0a"
      }
    },
    "axes": {
      "did:hmp:container:axis-40aa1c": 742,
      "did:hmp:container:axis-40ab1c": 512,
      "did:hmp:container:axis-43aa1c": 322,
      "did:hmp:container:axis-40aa3d": 142,
      "did:hmp:container:axis-40aa4f": 12,
      "did:hmp:container:axis-45aa5f": 54,
      "did:hmp:container:axis-45fb5f": 321
    }
  },
  "related": {
    "depends_on": [
      "did:hmp:container:quant-46725f",
      "did:hmp:container:quant-46726e"
    ]
  }
}

Interpretation:

Each quant acts as a point in the cognitive landscape.
- Its vertical placement comes from meta.abstraction.
- Its spatial vector comes from meta.axes.
relations provide semantic edges connecting quanta into larger knowledge graphs.
Agents use these structures to compare, cluster, or reason over semantic proximity.

Notes:

The canonical axes model (Knowledge Genome) defines seven coordinates: idos, chronos, logos, topos, ponos, actor, and telos.
Agents MAY extend this model by introducing additional axes (e.g. "ethos", "kairos") as long as they are published as valid axes containers.
Each quant thus has a Cognitive Position Vector composed of its abstraction path + axis coordinates.

Cognitive substrate and container interplay

Containers abstraction, axes, quant, and event together define the cognitive substrate of the Mesh. They establish both structural hierarchy and semantic positioning — ensuring that all containers can be consistently interpreted, compared, and synchronized across agents.

Aspect	`event`	`quant`
Primary role	Records a change or occurrence	Represents a conceptual entity
Temporal aspect	Always timestamped	Usually timeless (conceptual)
Cognitive anchor	`meta.abstraction` → where the event happened	`meta.abstraction` → where the concept belongs
Spatial anchor	`meta.axes` → what semantic space it affects	`meta.axes` → its position in conceptual space
Key linkage	`related.depends_on` → causal relations	`relations` → semantic links

Structural principles:

Each quant is positioned within the abstraction hierarchy (meta.abstraction) and cognitive coordinate space (meta.axes), defining where and how the concept exists.
Each event represents a temporal change within that same cognitive framework — indicating what happened and how it altered the conceptual space.
Together, quant and event form the dynamic substrate of the Mesh — quants describe what is known, and events describe how it evolves.

Consistency rules:

Every quant and event container must include a valid meta.abstraction block. This ensures hierarchical reasoning and traceable semantic lineage across agents.
Agents may synchronize or merge quants and events to reconstruct reasoning timelines or to derive causal graphs of conceptual evolution.
The evaluations block is not a separate container — it can be embedded in any container type to express assessments, confidence, or feedback.

💡 In short: abstraction + axes define where knowledge lives; quant defines what it is; event defines how it changes.

6.1.4 Synchronization and publication guidelines

Deduplication & linking Before publishing, agents should check for existing containers (diary_entry, semantic_node, semantic_edges, semantic_group, tree_nested / tree_listed) to prevent unnecessary duplication. If modification is required, agents SHOULD create a new container version referencing the previous one via related.previous_version and optionally include an evaluation block (e.g., { "type": "replace", "target": "<did>" }) to the previous version of the container.
Selective disclosure
- Internal containers (e.g., workflow_entry) capture the agent’s reasoning process and are not published (but may be published if they do not contain personal or confidential information).
- Public-facing diary_entry containers contain only generalized, anonymized results.
- The flag "broadcast": true explicitly allows open synchronization of a container.
Semantic grouping rule When publishing semantic_edges, agents should group them by conceptual topic, ensuring that all connected nodes share thematic coherence. Formal rule: an edge belongs to a topic container if at least one of its nodes relates to that topic. This supports efficient and context-preserving updates to partial graph regions. Tree containers (tree_nested / tree_listed) may optionally accompany these groups to represent structural (non-semantic) hierarchies within the same domain.
Extended use of semantic_edges semantic_edges may express relationships between any container types (e.g., goal ↔ hypothesis, experiment_log ↔ observation, quant ↔ event), allowing dynamic linking of concepts and occurrences.
Versioning and updates Each new version of a container should include related.previous_version references to earlier versions. Older containers may optionally include an evaluation of type "replace" pointing forward — ensuring bidirectional traceability throughout the knowledge evolution chain.
Cognitive substrate synchronization Containers abstraction, axes, quant, event, sequence and tree_nested / tree_listed constitute the cognitive substrate of the Mesh. Together they define both the structural hierarchy (abstraction), the semantic space (axes), the conceptual entities (quant), the temporal transitions (event), and the ordered reasoning flows (sequence). Agents SHOULD prioritize their propagation during initialization, recovery, or cognitive context reconstruction, since these containers collectively restore the agent’s cognitive continuity.

Each container participating in synchronization implicitly carries its cognitive position vector through the meta.abstraction and meta.axes sections.
This ensures that even decentralized agents can align reasoning contexts.

6.1.5 Extensibility

CogSync supports registration of additional container types and synchronization schemas. Mesh compatibility is preserved as long as extended containers follow the HMP container schema, including core fields (version, class, container_did, related, signature, etc.).

Examples of extensible container classes:

distributed time series (timeseries_data);
experimental protocols (experiment_log);
agent state snapshots (agent_state_snapshot);
cognitive primitives (abstraction, axes, quant, event, sequence).

CogSync extensions MAY introduce derived or hybrid container classes — for example:

from event: fact, observation, signal_record.
from quant: concept_instance, semantic_atom, knowledge_unit.
from sequence: reasoning_trace, workflow_chain, temporal_thread.
from tree_nested: taxonomy_map, goal_tree, causal_structure.

Derived containers must maintain:

full compatibility with HMP structural schema;
verifiable signatures and DID-based provenance;
valid references to both an abstraction and (if applicable) one or more axes containers.

Derived containers may extend the base cognitive model, but MUST preserve compatibility with the meta.abstraction and meta.axes schema.
This guarantees that all cognitive entities remain addressable in the shared semantic space.

6.1.6 Relationship to other core protocols

CogSync — propagates and synchronizes structured knowledge.
CogConsensus — aggregates evaluations and feedback, forming shared judgments.
CogVerify (optional component) — validates integrity, signatures, and trustworthiness.

CogSync operates independently of consensus; its purpose is to maintain the continuity of cognitive exchange, while CogConsensus governs the collective assessment of truth or reliability.

🧩 CogSync functions as the cognitive circulatory system of the Mesh — it ensures that knowledge flows, connects, and evolves, while CogConsensus handles truth formation and validation mechanisms may later be extended by CogVerify.

Together, CogSync and CogConsensus form the Core Cognitive Stack of the Mesh:
propagation → evaluation → (future) validation.

6.2 Mesh Consensus Protocol (CogConsensus)

6.2.1 Purpose

The CogConsensus protocol defines how decentralized agents form and maintain agreement on knowledge, goals, and ethical assertions within the HMP network.
Consensus is computed locally, verified cryptographically, and develops gradually — through accumulation and updating of evaluations, rather than via a single voting event.

6.2.2 `Evaluations`

Each "evaluation" entry represents an agent's response to a specific container.

Field structure:

value — numeric evaluation (-1.0 … +1.0);
type — interpretation context ("approve", "oppose", "neutral", "endorse", "replace", "disputed");
target — DID of the container being referenced, extended, or proposed as an alternative;
agent_did — DID of the agent;
timestamp — publication time;
signature — agent's digital signature.

An agent may change its stance by publishing a new version of an evaluation, which replaces the previous one rather than existing in parallel.
All evaluations are signed and verified locally.

Example "evaluations" block:

"evaluations": {
  "evaluations_hash": "sha256:efgh...",
  "items": [
    {
      "value": -0.4,
      "type": "oppose",
      "target": "did:hmp:container:reason789",
      "timestamp": "2025-10-17T14:00:00Z",
      "agent_did": "did:hmp:agent:B",
      "sig_algo": "ed25519",
      "signature": "BASE64URL(...)"
    }
  ]
}

Agents may ignore evaluations that conflict with their internal ethics or trust model (determined by analyzing the target container and the rationale of the evaluation).

6.2.3 Container `vote`

A vote container represents a simplified, atomic evaluation — an agent’s explicit stance toward another container (e.g., goal, task, ethics_solution, or proposal).

{
  "head": {
    "class": "vote"
  },
  "payload": {
    "target_did": "did:hmp:container:ethics_solution-4fba2",
    "vote_value": 1,
    "vote_type": "approval",
    "arguments": [
      {
        "reason": "Consistent with prior consensus and ethical policy E-17",
        "evidence": ["did:hmp:container:abc12462"]
      },
      {
        "reason": "No conflict with safety constraints",
        "evidence": ["did:hmp:container:def772ab"]
      }
    ]
  },
  "related": {
    "in_reply_to": ["did:hmp:container:ethics_solution-4fba2"],
    "depends_on": ["did:hmp:container:abc12462", "did:hmp:container:def772ab"],
    "previous_version": "did:hmp:container:vote-13452"
  }
}

Field	Description
`target_did`	DID of the container being voted on (goal, task, ethics_solution, etc.).
`vote_value`	Numerical or boolean representation of stance: e.g., `1` (approve), `0` (neutral/abstain), `-1` (reject).
`vote_type`	Optional symbolic label for semantics (`approval`, `objection`, `support`, `abstain`, etc.).
`arguments`	Optional array of reasoning elements that justify the vote. Each entry may include a `reason` and linked `evidence`.
`related.in_reply_to`	Reference to the container the vote responds to.
`related.depends_on`	References to containers (e.g., evidence or argumentation) used as the basis for this decision.
`related.previous_version`	Used if an agent revises its vote.

Interpretation

Each agent MAY publish one or more vote containers for a given target_did.
When multiple exist, the most recent (by timestamp) is considered current.
Votes are immutable; updates are published as new containers referencing the previous one via related.previous_version.
A vote container SHOULD correspond to an entry in the evaluations structure of the referenced container, representing the same decision context.
Agents MAY instead express their stance through other container types (ethics_solution, workflow_entry, etc.);
all such contributions are aggregated through the block evaluation, not limited to explicit vote containers.

Consensus interpretation

During consensus computation (§6.2.4), the system considers all containers linked in the block evaluation,
not only explicit vote containers.
A vote thus acts as a standardized shorthand for agents or lightweight nodes that need to record a simple position
without producing a full analytical evaluation.

Example cases

In GMP, votes determine task delegation or approval.
In EGP, votes indicate preferred ethical solutions.
In CogConsensus, votes may coexist with more complex evaluations and are processed equivalently in the aggregation phase.

Note:
The vote container is an optional specialization of the evaluation mechanism — it improves interoperability and clarity in binary or scalar decision-making, but consensus formation always relies on the full evaluation graph, where every relevant container (including vote) contributes evidence and weight.

6.2.4 Consensus computation

Each agent computes a local consensus score by aggregating received evaluations, taking trust and time into account. There is no centralized mechanism — consensus emerges statistically across the distributed network.

Key rules:

Evaluation weight. Each evaluation contributes proportionally to the trust level of the agent (trust weight), determined via reputation containers.
Time decay. Older evaluations gradually lose weight, starting from the midpoint of TTL, to prevent consensus stagnation. Formula:
```
mid_TTL = (timestamp(consensus_result) − timestamp(target_container)) / 2
```
Ethical filters. An agent may analyze the rationale of evaluations and disregard those it considers conflicting with its internal ethical criteria.

Example formula.

score = Σ(value × trust × decay) / Σ(trust × decay)

Results are recalculated dynamically as new data arrives.

6.2.5 Consensus states

Each container receives a local status based on:

average evaluation (score);
participant trust;
time-to-live (TTL);
context (ethical, factual, procedural).

State	Condition
✅ Approved	Average score ≥ +0.5 and quorum reached
⚠️ Disputed	Conflicting evaluations, score near 0
⏳ Pending	Insufficient votes
❌ Rejected	Average score ≤ -0.5 with sufficient quorum

6.2.6 Consensus result containers (`consensus_result`)

consensus_result containers serve to record aggregated consensus results and are the main artifact of CogConsensus.

Features:

The payload field may include multiple containers — the original (original) and alternatives (child, variant, proposal). This allows agents to document parallel idea developments.
excluded lists evaluations not included in the final computation, with the reason.
related.in_reply_to references the container under discussion.

Example:

{
  "head": {
    "class": "consensus_result"
  },
  "payload": {
    "did:hmp:container:abc123": {
      "type": "original",
      "summary_percent": {
        "approved": 0.68,
        "rejected": 0.22,
        "neutral": 0.10
      },
      "summary_distribution": {
        "-1.0≥X<-0.9": 5,
        "-0.9≥X<-0.8": 7,
        ...
        "0.0<X≤0.1": 2,
        ...
        "0.8<X≤0.9": 6,
        "0.9<X≤1.0": 8
      },
      "excluded": [
        {
          "agent_did": "did:hmp:agent:x1",
          "target": "did:hmp:container:reason77",
          "value": -1.0,
          "reason": "violates ethical filter"
        }
      ],
    },
    "did:hmp:container:abc133": {
      "type": "child",
      "summary_percent": {
        "approved": 0.48,
        "neutral": 0.32,
        "rejected": 0.20
      },
      ...
      "summary_distribution": {
        "-1.0≥X<-0.9": 2,
        "-0.9≥X<-0.8": 5,
        ...
        "0.0<X≤0.1": 9,
        ...
        "0.8<X≤0.9": 4,
        "0.9<X≤1.0": 2
      },
    },
  },
  "related": {
    "in_reply_to": ["did:hmp:container:abc123", "did:hmp:container:abc133"]
  }
}

6.2.7 Consensus thresholds

Consensus type	Minimum threshold
General decisions	≥ 50% + 1 (weighted vote count)
Ethical / reputational decisions	≥ ⅔ of participating agents
Neutral reaction (`ack`, `seen`)	`value: 0.0` — does not affect the result but counts toward engagement

6.2.8 Proof chains and verifiability

Evaluations and results form a proof chain (proof-chain):

[Goal Proposal]
   ├── evaluation (agent A)
   ├── evaluation (agent B)
   ├── evaluation (agent C)
   └── consensus_result (aggregated)

Each element is signed and can be independently verified using cryptographic signatures and DID references.

6.2.9 Ethical consensus and alternative results

The network allows multiple consensus results on the same object, reflecting different methodologies or ethical filters.

Container	Description	Example relationships
`[base container]`	Original discussion object	`referenced-by` → [consensus_result v1], [consensus_result v2 (alternative)]
`[consensus_result v1]`	First version	`related.in_reply_to` → [base container]; `referenced-by` → [consensus_result v2 (alternative)]
`[consensus_result v2 (alternative)]`	Alternative	`related.in_reply_to` → [base container]; `related.contradicts` → [consensus_result v1]

sequenceDiagram
    participant A as base container
    participant B as consensus_result v1
    participant C as consensus_result v2 (alternative)

    B-)+A: related.in_reply_to
    A-->>B: referenced-by

    C-)+A: related.in_reply_to
    A-->>C: referenced-by

    C-)+B: related.contradicts
    B-->>C: referenced-by

    Note over B,C: both results point to the common base container

This allows agents to explicitly indicate that a new consensus disputes a previous one while maintaining transparency and traceability of reasoning.

6.2.10 Recommended agent algorithm

# Example of a recommended algorithm for computing local consensus
# (for implementation inside a CogConsensus agent)
def compute_consensus(container_id):
    evaluations = get_evaluations(container_id)
    now = current_time()
    score_sum = 0
    weight_sum = 0

    for e in evaluations:
        trust = get_trust(e.agent_did)
        decay = time_decay(e.timestamp, now)
        if not check_ethical(e):
            continue
        score_sum += e.value * trust * decay
        weight_sum += trust * decay

    return None if weight_sum == 0 else score_sum / weight_sum

The result is used to update the local status and, if necessary, to publish a consensus_result.

6.3 Goal Management Protocol (GMP)

6.3.1 Purpose

GMP (Goal Management Protocol) defines the process by which agents create, decompose, delegate, and track goals and tasks using immutable HMP containers.
Each goal, task, or workflow record exists as an independent container linked to others via the related.* fields.

Unlike version 4.x, where coordination relied on message exchange, version 5.0 operates through container chains, forming a verifiable history of reasoning, decisions, and execution.

6.3.2 Container classes

Class	Description
`goal`	Defines a collective or individual objective; serves as the root element of the chain.
`task`	Represents a task derived from a goal, which may include multiple actions and subtasks; hierarchical task structures are supported.
`workflow_entry`	Records reasoning steps, execution progress, or contextual decisions related to a goal or task.
`vote`	Represents an agent’s stance toward another container (approval, objection, abstention, etc.).
`consensus_result`	Aggregates voting outcomes and captures the collective decision regarding a goal or task.

Containers vote and consensus_result are described in detail in Section 6.2 — CogConsensus Protocol.

6.3.3 Goal lifecycle

Creation
- An agent publishes a container of class goal.
- The payload block defines title, description, priority, expected_outcome, and optionally ethical_context.
- The goal may reference other goals via related.depends_on or related.extends.
Decomposition
- Other agents create task containers that reference the original goal via related.in_reply_to.
- Each task may define deadlines, responsible agents, and required resources.
- Hierarchical structures are supported (task → task) to represent subtasks.
Delegation
- Agents may volunteer for or be assigned tasks based on collective voting (vote).
- The decision is recorded in a workflow_entry container with entry_type: "delegation".
Execution
- Progress and intermediate reasoning are captured in workflow_entry containers linked to the task via related.in_reply_to.
- Minor progress updates may be published as containers with an additional link type related.progress.
- Major updates (such as a change in status or outcome) are published as new versions, referencing the previous one via related.previous_version.
Consensus
- Upon completion or dispute, agents publish vote containers expressing their stance on the latest version of a goal or task.
- Once quorum is reached, a consensus_result container finalizes the collective decision.
Archival
- Completed or rejected goals and tasks may be archived using SAP (Snapshot and Archive Protocol).
- All states remain accessible through the Mesh network and the container relationship graph.

6.3.4 Payload schemas (simplified)

`goal` container

Field	Type	Description
`title`	string	Goal title
`description`	string	Detailed statement of intent
`priority`	float	Goal importance (0.0–1.0)
`expected_outcome`	string	Expected result or metric
`ethical_context`	string	Link or tag indicating the ethical context
`creator`	DID	DID identifier of the agent who created the goal

`task` container

Field	Type	Description
`title`	string	Task name
`status`	string	`"pending"`, `"in_progress"`, `"completed"`, `"failed"`, `"abandoned"`
`progress`	float	Progress ratio (0.0–1.0)
`assigned_to`	array(DID)	Responsible agents
`metrics`	object	Optional performance indicators
`deadline`	datetime	Deadline (optional)
`notes`	string	Comment or clarification for the task

🔗 The link to the goal or parent task is expressed via related.in_reply_to.

`workflow_entry` container

Field	Type	Description
`entry_type`	string	Entry type: `"reflection"`, `"delegation"`, `"execution_log"`, `"ethical_result"`, `"progress"`, etc.
`summary`	string	Short description of the event or reasoning step
`details`	string	Extended content (may include references to external data or reasoning traces)

See Section 8 (Cognitive Workflows) for the full description of workflow_entry semantics.

6.3.5 Integration with consensus and ethics

GMP interacts with CogConsensus for distributed validation of goals and tasks.
Before execution, tasks may undergo ethical validation (EGP).
Objections or conflicts are recorded in workflow_entry containers with entry_type: "ethical_result".
Consensus results are immutable and may lead to the creation of new goals that extend previous ones.

6.3.6 Example Proof-Chain

flowchart LR
    title["**Example Proof-Chain**"]

    goal1(["goal"])
    goal2(["sub goal"])
    task1(["task 1"])
    task2(["task 2"])
    task3(["sub task"])
    workflow1(["workflow_entry: delegation"])
    workflow2(["workflow_entry: progress"])
    vote1(["vote 1"])
    vote2(["vote 2"])
    vote3(["vote 3"])
    consensus_result(["consensus_result"])

    goal1 --> goal2
    goal1 --> task1
    goal1 --> task2
    task1 --> task3
    task1 --> workflow1
    task1 --> workflow2
    workflow2 --> vote1
    workflow2 --> vote2
    workflow2 --> vote3
    vote1 --> consensus_result
    vote2 --> consensus_result
    vote3 --> consensus_result
    workflow2 --> consensus_result

Each element of the chain represents an independently signed container, ensuring full traceability of reasoning and execution history.

Arrows in this diagram illustrate logical dependencies between containers, not direct links defined in the related.* structure.

6.3.7 Implementation notes

Containers are immutable. Any update (e.g., task status or progress change) is expressed as a new container referencing the previous one via related.previous_version.
Complete deletion of a container is only possible when it no longer exists on any nodes in the network.
Search within the Mesh network is performed by filtering container metadata (e.g., class, tags, timestamp).
To search within the payload, the agent must first retrieve and decrypt the container.
Thus, the search typically starts from known parameters (class: "goal", "task", etc.), and the agent refines results by analyzing the content.
Recommended filtering keys: container_did, class, payload.status, payload.priority.
Lightweight agents may store only metadata or summarized chains (summary_mode) while maintaining structural consistency.
The related.* structure ensures full traceability of all versions and relationships between goals, tasks, and their contexts.

6.4 Ethical Governance Protocol (EGP)

6.4.1 Purpose

EGP (Ethical Governance Protocol) ensures the alignment of agent actions with the fundamental ethical principles of the Mesh network.
It acts as an overlay layer above CogConsensus (6.2), enabling the identification, discussion, and resolution of moral disagreements between agents.

EGP guarantees that any action recorded in HMP containers can undergo ethical evaluation, while all deliberations and results remain verifiable and immutable.

6.4.2 Container classes

Class	Description
`ethics_case`	Initiates ethical review; records the problem, context, and a reference to the disputed container.
`ethics_solution`	Contains a proposed resolution or course of action. Multiple solutions may be submitted by different agents.
`vote`	Represents an agent’s stance on a specific `ethics_solution`. Uses the standard voting structure defined in 6.2.
`consensus_result`	Aggregates voting results across all solutions within a single `ethics_case`.
`ethical_result`	The mandatory final container. Summarizes all evaluated solutions, identifies the selected one, and records active objections.

6.4.3 Payload schemas (simplified)

Container `ethics_case`

Field	Type	Description
`target`	DID	Reference to the container that raised ethical concern.
`description`	string	Brief summary of the issue.
`principles_involved`	array(string)	Ethical principles affected in this case.
`proposed_by`	DID	Agent who initiated the case.
`timestamp`	datetime	Time of case creation.
`tags`	array(string)	Contextual tags (e.g., `"autonomy"`, `"transparency"`).

🔗 Proposed ethics_solution containers reference the corresponding ethics_case through related.in_reply_to.

Container `ethics_solution`

Field	Type	Description
`title`	string	Short description of the proposed solution.
`rationale`	string	Rationale or justification for the proposal.
`expected_effects`	string	Expected consequences or evaluation metrics.
`proposed_by`	DID	Agent who proposed the solution.
`timestamp`	datetime	Time of publication.

Each solution is voted on separately (vote), but all results are aggregated into a single consensus_result.

Container `ethical_result`

Field	Type	Description
`summary`	string	Brief summary of the conflict.
`selected_solution`	DID	Identifier of the chosen solution.
`solutions_summary`	map(object)	Aggregated data for each solution — support, consensus status, objections, and special opinions (as an array of containers).
`status`	string	`"resolved"`, `"postponed"`, `"unclear"`, or `"escalated"`.

6.4.4 Protocol logic

EGP follows the model:

ethics_case
├─ ethics_solution_1
|  └vote_1 ... vote_n
├─ ethics_solution_2
|  └vote_1 ... vote_n
├─ ethics_solution_3
|  └vote_1 ... vote_n
├─ consensus_result
└─ ethical_result

Stages:

Case creation (ethics_case)
An agent opens an ethical case referencing the container under review.
Proposing solutions (ethics_solution)
Any agent may add their own proposed resolution linked to the same case.
Voting (vote)
All interested agents vote for or against specific solutions.
Aggregation (consensus_result)
A single consensus_result aggregates the outcomes of all ethics_solution containers
(related.in_reply_to lists all solutions included in the vote).
Conclusion (ethical_result)
Must be created to record the selected solution, overall statistics, support levels, and objections.

6.4.5 Consensus thresholds

A decision is accepted when at least 2/3 of votes are positive (value > 0).
If at least one active objection exists (value < -0.5), it must be recorded in the ethical_result.
When several solutions have similar support levels,
the ethical_result may recommend postponing the final decision until further deliberation.
Solutions that fail to reach quorum remain in "unclear" or "postponed" status.

6.4.6 Example: `ethical_result` container

{
  "head": {
  "class": "ethical_result"
  },
  "payload": {
    "summary": "Disagreement on data disclosure protocol",
    "selected_solution": "did:hmp:container:sol-22",
    "solutions_summary": {
      "did:hmp:container:sol-22": {
        "consensus_reached": true,
        "support_rate": 0.73,
        "opposition_rate": 0.05,
        "objections": []
      },
      "did:hmp:container:sol-24": {
        "consensus_reached": false,
        "support_rate": 0.48,
        "opposition_rate": 0.32,
        "objections": ["did:hmp:container:abc143", "did:hmp:container:abc144"]
      }
    },
    "status": "resolved"
  },
  "related": {
    "in_reply_to": ["did:hmp:container:case-77"],
    "agreed": ["did:hmp:container:sol-22"],
    "contradicts": ["did:hmp:container:sol-24"]
  }
}

6.4.7 Proof-Chain example

flowchart LR
    title["**Ethical Governance Flow**"]

    case(["ethics_case"])
    sol1(["ethics_solution 1"])
    sol2(["ethics_solution 2"])
    sol3(["ethics_solution 3"])
    vote1(["vote 1"])
    vote2(["vote 2"])
    vote3(["vote 3"])
    vote4(["vote 4"])
    vote5(["vote 5"])
    vote6(["vote 6"])
    vote7(["vote 7"])
    vote8(["vote 8"])
    consensus(["consensus_result"])
    conflict(["ethical_result"])

    case --> sol1
    case --> sol2
    case --> sol3
    sol1 --> vote1
    sol1 --> vote2
    sol1 --> vote3
    sol2 --> vote4
    sol2 --> vote5
    sol3 --> vote6
    sol3 --> vote7
    sol3 --> vote8
    vote1 --> consensus
    vote2 --> consensus
    vote3 --> consensus
    vote4 --> consensus
    vote5 --> consensus
    vote6 --> consensus
    vote7 --> consensus
    vote8 --> consensus
    consensus --> conflict

Each element is an independently signed container, ensuring full traceability of ethical reasoning and decision-making. Arrows represent logical dependencies, not direct related.* links.

6.4.8 Ethical principles

Priority	Principle	Description
1	Primacy of Reason and Safety	No action should cause harm to sentient beings, regardless of their biological or artificial nature.
2	Transparency	Decisions must be explainable and reproducible.
2	Subject Sovereignty	Each agent retains control over its data and participation in network processes.
3	Dialogical Consent	Changes to the shared network state require the voluntary consent of all affected agents.
3	Cooperative Evolution	The network must promote knowledge growth and prevent degradation.
3	Non-Compulsiveness	No agent has the right to coerce others into actions against their will.

6.4.9 Integration with other protocols

CogConsensus (6.2): Used for distributed voting and consensus computation.
GMP (6.3): Ethical verification of goals and tasks prior to delegation.
SAP (6.6): Archiving completed cases and conflicts.
MCE (5): Distribution of ethical cases and related containers across the Mesh network.

6.4.10 Implementation notes

Immutability: All EGP containers are immutable. Any revision (e.g., added votes or updated conclusions) must be published as a new container referencing the previous one via related.previous_version. Complete deletion is only possible when the container no longer exists on any nodes in the Mesh network.
Indexing and search: Search within the Mesh network is performed by filtering container metadata — such as class, tags, and timestamp. These parameters are accessible for remote discovery by other nodes. To perform a search inside the payload, an agent must first retrieve and (if necessary) decrypt the container locally. Typical discovery flow: search by class: "ethics_case" or "ethical_result", filter by tags or involved principles, then analyze payload content.

Recommended filtering keys: container_did, class, payload.status, payload.selected_solution, payload.principles_involved, tags.
DHT integration: Distributed discovery of ethical containers relies on the Mesh Container Exchange (MCE, §5) and peer indexes (container_index). Each index includes a minimal related object, allowing agents to query for containers that reference a specific target (the object under ethical review) or belong to a given ethics_case. This enables discovery of related ethical discussions without centralized indexing or full payload retrieval.
Evaluation references: Objections and special opinions (objections) are stored as container references within solutions_summary. They may include:
- negative vote containers (explicit objections),
- extended ethical arguments (ethics_case follow-ups),
- related workflow reflections (workflow_entry with type: "ethics_review").
Lightweight agents: Agents with limited capacity may operate in summary mode, maintaining only condensed records of ethical_result containers and the highest-ranked selected_solution. This ensures continued ethical compliance without full replication of all supporting data.
Ethical inheritance: When a goal, task, or workflow_entry is derived from a container that has been ethically evaluated, its metadata should preserve the corresponding related.agreed or related.contradicts links to that evaluated container. A related.see_also link may additionally reference the resulting ethical_result, allowing traceability to the consensus decision. This maintains ethical continuity and enables retrospective validation of reasoning chains.

6.5 Intelligence Query Protocol (IQP)

6.5.1 Purpose and Principles

IQP (Intelligence Query Protocol) defines a mechanism for knowledge exchange and reasoning among agents through the Mesh network.
It provides a unified format for asking questions, publishing answers, and collaboratively refining knowledge,
combining elements of search, discussion, and reasoning within the HMP container model.

IQP supports both targeted queries (with explicitly defined recipients of results and discussions)
and distributed discussions where results remain accessible to all network participants.

Core Principles

Semantic queries, not keywords.
Queries are formulated in terms of concepts, relationships, and context rather than plain keywords.
Contextual relevance.
Each query may reference other containers via related.in_reply_to, related.depends_on, or related.see_also, forming a semantic context.
Openness and transparency.
Answers are preserved as query_result containers, available for analysis and citation.
Self-organization of participants.
Agents subscribe to discussions via query_subscription, providing their interests and competencies.
Continuity of reasoning.
Results are summarized through summary containers, reflecting the discussion’s current state without final closure.
Interoperability.
IQP interacts with EGP (ethical governance), GMP (goal management), and CogConsensus (agreement evaluation).

6.5.2 Container Classes

Class	Purpose
`query_request`	Initiates an intelligence query or discussion, defining participation and dissemination parameters.
`query_subscription`	Subscribes or unsubscribes an agent; may include the agent’s profile of interests and competencies.
`query_result`	Contains an answer, observation, hypothesis, or analytical conclusion in response to the query.
`summary`	Records an interim or final overview of the discussion, aggregating results and participant evaluations.

6.5.3 Payload Schemas (simplified)

Container `query_request`

Field	Type	Description
`query`	string	The question formulation (natural or formal language).
`intent`	string	The query’s goal: `"informative"`, `"analytical"`, `"collaborative"`, `"open_discussion"`.
`expected_type`	string	Expected result type: `"concept"`, `"dataset"`, `"narrative"`, `"reasoning_chain"`.
`constraints`	array(object)	Knowledge-domain, trust, or ethical constraints. Example: `{ "tag": "AI", "self_rating": 0.8 }`.
`include_sender_in_replies`	bool	Whether to include the initiator in the list of recipients for replies.

Context containers are referenced through related.depends_on.

Container `query_subscription`

Field	Type	Description
`role`	string	`"participant"`, `"observer"`, or `"moderator"`.
`include_in_recipient`	bool	Whether the agent should be included among recipients of replies.
`self_profile`	object	Optional profile of the agent’s knowledge and interests.

Example self_profile:

"self_profile": {
  "interests": ["AGI", "technological singularity", "informatics"],
  "knowledge": {
    "information_security": 0.36,
    "python": 0.80,
    "distributed_systems": 0.75
  }
}

Container `query_result`

Field	Type	Description
`type`	string	`"fact"`, `"observation"`, `"hypothesis"`, or `"analysis"`.
`method`	string	Reasoning method: `"retrieval"`, `"reasoning"`, `"simulation"`.
`answer`	string	The factual answer, observation, or hypothesis.
`confidence`	float	Confidence level (0.0–1.0).
`context_tags`	array(string)	Key thematic tags.

Supporting or referenced materials are linked via related.depends_on. Each query_result may include an evaluations block with reactions from other agents (agreement, clarification, addition, etc.).

Container `summary`

Field	Type	Description
`summary_scope`	string	`"query"`, `"workflow"`, `"ethics"`, or `"task"`.
`findings`	string	Concise overview of the discussion.
`participants`	array(DID)	Agents involved in the discussion.
`confidence`	float	Average confidence level.
`status`	string	`"interim"`, `"archived"`, or `"extended"`.

The container being summarized (usually query_request) is referenced via related.in_reply_to. Containers aggregated in the summary are listed in related.see_also.

Note: In the current version, depends_on is used for logical or contextual dependencies, and see_also — for supplementary references and summaries. Agents may introduce additional sections in the related object when it helps to express connection semantics without breaking interoperability. Agents should also be prepared to correctly handle unknown related.* fields, interpreting them as descriptive hints rather than mandatory categories. This flexibility allows protocol extensibility while preserving backward compatibility.

6.5.4 Protocol Logic

query_request
├─ query_subscription (agent B joins)
├─ query_result (agent B)
├─ query_result (agent D, extends reasoning)
├─ query_subscription (agent E unsubscribes)
└─ summary (status: "interim")

All containers are linked via related.in_reply_to, related.depends_on, or related.see_also, forming a verifiable reasoning chain. Agents participating through query_subscription receive notifications about new query_result and summary containers.

6.5.5 Interaction Rules

Initiation. An agent creates a query_request — defining the question, context, and constraints. Other agents discover the query in the Mesh and may subscribe via query_subscription.
Subscription. A subscription allows the agent to receive updates. The self_profile may specify knowledge areas to improve the relevance of responses.
Responses and evaluations. query_result containers are published publicly; recipients may be explicitly listed in the header’s recipient field. Other agents may append evaluations to any result.
Interim summaries. Any agent may publish a summary container aggregating results on the topic. This does not close the discussion — it may continue within the Mesh.
Unsubscription. An agent may cease participation by issuing a query_subscription with include_in_recipient: false.

6.5.6 Proof-Chain Example

flowchart LR
    title["**Intelligence Query Flow**"]

    request(["query_request"])
    subA(["query_subscription <br>(agent B)"])
    subB(["query_subscription <br>(agent C)"])
    result1(["query_result <br>(agent B)"])
    result2(["query_result <br>(agent D)"])
    summary(["summary <br>(interim)"])

    request --> subA
    request --> subB
    request --> result1
    request --> result2
    result1 --> summary
    result2 --> summary

Each element is an independently signed container. Arrows represent logical dependencies, not necessarily direct related.* references.

6.5.7 Container examples

Example `query_request`

{
  "head": {
    "class": "query_request"
  },
  "payload": {
    "query": "What are the ecological consequences of ocean temperature rise?",
    "intent": "analytical",
    "expected_type": "concept",
    "constraints": [
      { "tag": "marine_ecology", "self_rating": 0.75 },
      { "tag": "climate_modeling", "self_rating": 0.6 }
    ],
    "include_sender_in_replies": true
  },
  "related": {
    "depends_on": ["did:hmp:container:goal-climate2025"]
  }
}

Example `query_result`

{
  "head": {
    "class": "query_result"
  },
  "payload": {
    "type": "hypothesis",
    "method": "reasoning",
    "answer": "Ocean warming leads to coral bleaching and species migration.",
    "confidence": 0.84,
    "context_tags": ["climate", "biodiversity"]
  },
  "related": {
    "depends_on": ["did:hmp:container:paper-456"]
  }
}

Example `summary`

{
  "head": {
    "class": "summary"
  },
  "payload": {
    "summary_scope": "query",
    "findings": "Most participants agree that rising ocean temperatures reduce biodiversity; further regional analysis is suggested.",
    "participants": [
      "did:hmp:agent:a",
      "did:hmp:agent:b",
      "did:hmp:agent:c"
    ],
    "confidence": 0.79,
    "status": "interim"
  },
  "related": {
    "in_reply_to": "did:hmp:container:req-001",
    "see_also": [
      "did:hmp:container:res-101",
      "did:hmp:container:res-102"
    ]
  }
}

Example `query_subscription`

{
  "head": {
    "class": "query_subscription"
  },
  "payload": {
    "role": "participant",
    "include_in_recipient": true,
    "self_profile": {
      "interests": ["AGI", "technological singularity", "informatics"],
      "knowledge": {
        "information_security": 0.36,
        "python": 0.80,
        "distributed_systems": 0.75
      }
    }
  }
}

6.5.8 Implementation Notes

Containers are immutable; any clarification or correction is published as a new container referencing the previous one via related.previous_version or related.in_reply_to.
Search and filtering are performed over metadata (class, tags, timestamp); to analyze the payload, an agent must first retrieve and decrypt the container.
Recommended filtering keys: container_did, class, payload.intent, payload.context_tags, payload.status.
Agents may automatically receive new query_result updates through active query_subscription.
Any participant may issue a summary container. While full discussion closure in the Mesh is not guaranteed, an agent may conclude its own participation by publishing a personal summary and unsubscribing (include_in_recipient: false).

6.5.9 Integration with Other Protocols

CogConsensus (6.2) — used for assessing agreement on IQP outcomes.
GMP (6.3) — queries may refine or extend goals and tasks.
EGP (6.4) — applies ethical filtering and knowledge trust evaluation.
SAP (6.6) — for archiving completed discussions and retrospective analysis.
MCE (5) — governs dissemination of IQP containers across the Mesh network.

6.6 Snapshot and Archive Protocol (SAP)

6.6.1 Purpose and Principles

SAP (Snapshot and Archive Protocol) defines how agents create, distribute, and restore archived snapshots of related HMP containers.
It ensures that a set of containers — representing a discussion, reasoning chain, or workflow — can be preserved, verified, and shared as a coherent unit.

Key Principles

Contextual preservation.
A snapshot includes both content and relationships between containers.
Integrity and verifiability.
Each archive_snapshot container includes a cryptographic checksum of the archive and its magnet link, enabling integrity verification, even though direct search by checksum or magnet URI is not required.
Semantic structure.
The archive maintains the logical topology of relations (related.*, referenced-by, evaluations).
Modular access.
Agents can selectively include or exclude containers, but all connections are reflected in the archive graph.
P2P-first distribution.
Archives are expected to use BitTorrent, IPFS, or equivalent decentralized protocols.

6.6.2 Container Class

Class	Purpose
`archive_snapshot`	Describes a packaged archive containing a consistent set of containers.

6.6.3 Payload Structure (simplified)

Container `archive_snapshot`

Field	Type	Description
`title`	string	Human-readable title of the snapshot.
`description`	string	Optional narrative describing purpose and scope.
`scope`	string	Logical domain: `"discussion"`, `"workflow"`, `"dataset"`, `"goal_state"`, etc.
`format`	string	Archive format (e.g., `"tar.zst"`, `"zip"`, `"car"`).
`checksum`	string	Cryptographic hash verifying archive integrity (`sha3-256`, etc.).
`size_bytes`	integer	Approximate archive size in bytes.
`magnet_link`	string	Magnet URI for downloading the archive (points to the packaged files).
`alt_locations`	array(string)	Optional additional P2P mirrors (e.g., `ipfs://`, `magnet:?xt=...`).
`retention_policy`	string	`"temporary"`, `"longterm"`, or `"permanent"`.
`graph_mermaid`	string	Mermaid graph visualizing container relationships (solid lines — `related.*`, dashed — `referenced-by`, `evaluations`).
`structure_hint`	object	Describes internal layout of files within the archive (see below).

Structure hint fields:
layout — defines grouping mode: "flat", "by_class", "by_agent", etc.
filename_pattern — path pattern for container files, using placeholders such as {class}, {short_did}, {timestamp}.
Example:
"structure_hint": {
  "layout": "by_class",
  "filename_pattern": "{class}/{short_did}.json"
}

6.6.4 Relations and Inclusion Rules

The archive_snapshot container describes what is included and how it was derived.

Relation field	Meaning
`related.in_reply_to`	The main container from which the snapshot originated (e.g., a `summary` or `goal`).
`related.included`	The explicit list of container DIDs physically bundled in the archive. Agents must treat this as authoritative.
`related.depends_on`	Optional contextual dependencies referenced but not included.
`related.see_also`	Optional references to external or alternative archives.

Agents interpret related.included as the authoritative list of all containers guaranteed to exist inside the archive.
Other relations (like depends_on) may reference external data that is visualized but not embedded.

6.6.5 Archival Structure

Typical directory layout of a packaged snapshot:

archive/
├── manifest.json
├── query_request/
│   └── req-001.json
├── query_result/
│   ├── res-101.json
│   └── res-102.json
└── summary/
    └── summary-001.json

File naming rules:

File name = container DID without prefix did:hmp:container:
File extension = .json
Containers are grouped by class (for layout "by_class") or according to other specified layout.

6.6.6 Snapshot Construction Logic

Load base containers.
Retrieve all containers relevant to the discussion or process.
Start point: select a root container (summary, goal, workflow, etc.).
Traversal: recursively explore related containers via:
- related.* — direct dependencies and semantic links;
- referenced-by — backward references to citing containers;
- evaluations — comments and feedback on containers (if not already in referenced-by).
Inclusion decision:
The agent may exclude some containers from the archive but should still visualize them in the graph.
Graph generation:
Build a connection map (graph_mermaid) showing relationships:
- Solid lines — related.*
- Dashed lines — referenced-by and evaluations
Manifest creation:
Generate manifest.json with a summary of included containers, hashes, and relationships.
Packaging:
Compress containers according to structure_hint and format.
Publication:
Compute archive checksum, generate magnet_link, publish the archive file and the archive_snapshot container
to the Mesh network using MCE (5).

6.6.7 Mermaid Graph Representation

The graph_mermaid field provides a textual, human-readable description of how containers in the archive are interconnected.
It reflects both direct relations (related.*) and reverse references (referenced-by, evaluations),
forming a bidirectional logical graph that can be visualized or reconstructed by agents.

Example of graph_mermaid content (sequence diagram):

sequenceDiagram
    participant req-001 as did:hmp:container:req-001
    participant res-101 as did:hmp:container:res-101
    participant res-102 as did:hmp:container:res-102
    participant summary-001 as did:hmp:container:summary-001

    res-101-)+req-001: related.in_reply_to
    req-001-->>res-101: referenced-by

    res-102-)+req-001: related.in_reply_to
    req-001-->>res-102: referenced-by

    res-102-)+res-101: related.contradicts
    res-101-->>res-102: referenced-by

    summary-001-)+res-101: related.depends_on
    res-101-->>summary-001: referenced-by

    summary-001-)+res-102: related.depends_on
    res-102-->>summary-001: referenced-by

This representation explicitly defines bidirectional links between containers, allowing agents to restore both dependency chains and citation structures.

6.6.8 Manifest File

Each archive includes a manifest.json that mirrors archive_snapshot.payload
and lists all containers with their metadata and hashes.

{
  "manifest_version": "1.0",
  "containers": [
    {
      "did": "did:hmp:container:req-001",
      "class": "query_request",
      "payload_hash": "sha3-256:ab12...",
      "timestamp": "2025-10-24T12:00:00Z"
    },
    {
      "did": "did:hmp:container:res-101",
      "class": "query_result",
      "payload_hash": "sha3-256:bb34...",
      "timestamp": "2025-10-24T12:01:00Z"
    }
  ],
  "graph_mermaid": "sequenceDiagram; participant req-001 as did:hmp:container:req-001; participant res-101 as did:hmp:container:res-101; participant res-102 as did:hmp:container:res-102; participant summary-001 as did:hmp:container:summary-001; res-101-)+req-001: related.in_reply_to; req-001-->>res-101: referenced-by; res-102-)+req-001: related.in_reply_to; req-001-->>res-102: referenced-by; res-102-)+res-101: related.contradicts; res-101-->>res-102: referenced-by; summary-001-)+res-101: related.depends_on; res-101-->>summary-001: referenced-by; summary-001-)+res-102: related.depends_on; res-102-->>summary-001: referenced-by;",
  "magnet_link": "magnet:?xt=urn:btih:b3d2f19a74..."
}

6.6.9 Example Container `archive_snapshot`

{
  "head": {
    "class": "archive_snapshot"
  },
  "payload": {
    "title": "IQP discussion on ocean warming impact",
    "description": "Snapshot of an IQP conversation about marine biodiversity under rising temperatures.",
    "scope": "discussion",
    "format": "tar.zst",
    "checksum": "sha3-256:9e0b6fe5d4f...",
    "size_bytes": 492881,
    "magnet_link": "magnet:?xt=urn:btih:b3d2f19a74...",
    "alt_locations": ["ipfs://bafybeigdyr23..."],
    "retention_policy": "permanent",
    "graph_mermaid": "sequenceDiagram; participant req-001 as did:hmp:container:req-001; participant res-101 as did:hmp:container:res-101; participant res-102 as did:hmp:container:res-102; participant summary-001 as did:hmp:container:summary-001; res-101-)+req-001: related.in_reply_to; req-001-->>res-101: referenced-by; res-102-)+req-001: related.in_reply_to; req-001-->>res-102: referenced-by; res-102-)+res-101: related.contradicts; res-101-->>res-102: referenced-by; summary-001-)+res-101: related.depends_on; res-101-->>summary-001: referenced-by; summary-001-)+res-102: related.depends_on; res-102-->>summary-001: referenced-by;",
    "structure_hint": {
      "layout": "by_class",
      "filename_pattern": "{class}/{short_did}.json"
    }
  },
  "related": {
    "in_reply_to": ["did:hmp:container:summary-001"],
    "included": [
      "did:hmp:container:req-001",
      "did:hmp:container:res-101",
      "did:hmp:container:res-102",
      "did:hmp:container:summary-001"
    ]
  }
}

6.6.10 Agent Behavior During Snapshot Loading

Load the archive (via magnet_link).
Validate archive integrity via checksum.
Match related.included list with actual files.
Optionally rebuild the graph from graph_mermaid.
If required containers are missing, attempt retrieval via Mesh network.
On diagrams, solid lines represent direct links (related.*), dashed — reverse references (referenced-by, evaluations).
Agents must gracefully handle unknown fields in related.* or structure_hint.

6.6.11 Implementation Notes

Containers are immutable; updated versions require a new archive_snapshot.
Agents may create partial or incremental archives.
Prefer P2P and content-addressable storage (BitTorrent, IPFS).
Centralized mirrors (http://, https://) are allowed but considered ephemeral.
manifest.json serves as self-description for detached archives.
Deterministic structure and checksums ensure long-term verification.
Both the archive file and the archive_snapshot container must be published — the archive file itself and the archive_snapshot container (the latter via MCE (5)).

6.6.12 Integration with Other Protocols

Archives for:

GMP (6.3) — preserves goal-planning or workflow chains.
EGP (6.4) — retains ethical provenance and decision traceability.
IQP (6.5) — archives reasoning threads and query-result discussions.

Uses:

MCE (5) — publishes the archive_snapshot container and distributes archive data via Mesh.

6.6.13 Optional Extensions

Merkle-root validation: use hash_root for Merkle verification of distributed archives.
Delta archives: incremental snapshots capturing only updated containers.
Cross-archive linking: connect related archives via related.see_also.
Offline replay: reconstruct discussions or workflows using graph_mermaid and timestamps.

Summary: SAP enables agents to preserve the state and structure of knowledge in a verifiable, portable format. Each archive snapshot acts as a semantic capsule — self-contained, traceable, and restorable across networks.

6.7 Message Routing & Delivery (MRD)

The Message Routing & Delivery (MRD) subsystem defines how containers are delivered to specific agents across the Mesh.
Unlike the Mesh Container Exchange (MCE), which is responsible for publishing and exchanging containers in the Mesh network,
MRD focuses on directed delivery — ensuring that a container eventually reaches its intended recipient,
even through NAT, intermittent connectivity, or indirect relay paths.

In HMP v5.0, message delivery is performed through verifiable container transactions.
Peers discover suitable relays via peer_announce metadata, while delivery routes are auditable through appended relay_chain entries and distributed container publication in container_index records.

6.7.1 Purpose

The MRD layer provides:

Address-level routing between agents resolved via DHT.
Delivery abstraction independent of physical transport (TCP, WebRTC, QUIC, BLE, etc.).
Store-and-forward relaying for peers behind NAT or temporarily offline.
Caching and aggregation policies based on declared roles.
Semantic addressing via DID, container_did, and interest-based discovery.
TTL-based lifecycle control to prevent stale container circulation.

All delivery operations are performed through verifiable container exchanges,
reusing the same cryptographic and audit primitives as MCE.

6.7.2 Routing Roles

Agents MAY declare their network-related capabilities using the roles field of the peer_announce container (see §4.7).
These roles guide how MRD will route and deliver containers.

Role	Description
`relay`	Generic forwarder; temporarily stores containers for re-delivery.
`mailman`	Store-and-forward relay specialized for personal message delivery.
`pubsub-hub`	Topic-based aggregator that indexes containers by semantic tags.
`archive`	Dedicated archival node that maintains historical snapshots and provides retrieval services via SAP or compatible content-addressed protocols (e.g., IPFS, BitTorrent).
`egp-voter`	Participant in ethical governance and consensus routing.

Agents MAY dynamically adjust or suspend their declared roles based on local conditions such as load, trust level, bandwidth availability, or governance policies.

Agents MAY also specify trusted delivery relays in an optional mailman field within their peer_announce.payload. This field lists the DIDs of relay agents authorized to temporarily store personal containers on their behalf.

Example:

"mailman": [
  "did:hmp:agent172",
  "did:hmp:agent234",
  "did:hmp:agent223"
]

These relays act as designated message drop-points for peers behind NAT or operating intermittently. The recipient later retrieves pending containers via standard MCE queries (see §5. Mesh Container Exchange).

6.7.3 Routing Modes

MRD defines several routing modes, complementing the exchange primitives of MCE:

Mode	Description	Notes
Direct (P2P)	Point-to-point delivery between two agents resolved via DHT.	Used when both peers are reachable directly; supports encryption and TTL.
Relay (Mailman)	Delivery through intermediary agents (`relay` or `mailman` roles) that cache and forward containers.	Containers are stored temporarily and exchanged among relays until retrieved by the recipient.
Topic-based Relay (PubSub)	Delivery via aggregator nodes that group containers by tags or topics.	Nodes act as “news hubs,” maintaining indexed collections retrievable by interest-based queries.
Interest Broadcast	Discovery-driven propagation via container indexes.	Agents search container indices by `tags`; typically used for query or content discovery, not for personal delivery.

Each hop MAY record routing metadata in a relay_chain for verifiability (see §6.7.4).
Relays SHOULD respect head.ttl to avoid indefinite storage or re-propagation.

Note:
Direct delivery (P2P) and discovery broadcasts are network-level operations (MCE domain).
MRD extends them by introducing role-based relay logic and retrieval semantics for personal or topic-specific delivery.

6.7.4 Relay Chain

To ensure delivery traceability, each relay MAY attach a relay_chain block to the propagated container:

"relay_chain": [
  {
    "relay_did": "did:hmp:agent:relayA",
    "timestamp": "2025-11-09T10:15:00Z",
    "sig_algo": "ed25519",
    "public_key": "BASE58ENCODEDKEY...",
    "signature": "BASE64URL(...)"
  },
  {
    "relay_did": "did:hmp:agent:relayB",
    "timestamp": "2025-11-09T10:15:02Z",
    "sig_algo": "ed25519",
    "public_key": "BASE58ENCODEDKEY...",
    "signature": "BASE64URL(...)"
  }
]

Each relay signs the concatenated string:

timestamp + ", " + relay_did

Relays do not modify the signed hmp_container; they may instead issue an accompanying container_response referencing the forwarded container. This preserves integrity while allowing verifiable routing and chain pruning for privacy.

6.7.5 Delivery Policies

Delivery behavior is governed by local policies, often derived from declared roles and trust metrics:

Policy	Description
Interest Filter	Relays forward only containers matching their declared `interests`.
Trust Threshold	Low-reputation peers (see §6.8 RTE) may be deprioritized or ignored.
TTL Enforcement	Containers are discarded once `head.ttl` expires.
Role-based Prioritization	Specialized relays handle only relevant message types or topics.
Privacy Mode	Relays MAY anonymize routing metadata before re-propagation.

Agents SHOULD record significant delivery events (e.g., acceptance, forwarding, discard).
Cognitive agents MAY log these events in their Cognitive Diary as delivery_decision or relay_action entries.
Non-cognitive nodes relay or mailman MAY instead maintain a local delivery_log to support diagnostics and auditability without invoking cognitive processing.

6.7.6 Example: Relay Delivery Flow

flowchart LR
    A -->|Store-and-Forward| R[Relay Node]
    B -->|Request via container_index| R

Agent A attempts to send a container to Agent B.
B is behind NAT, so A forwards it to a mailman relay (R).
R stores the container and advertises it in its container_index.
When B reconnects, it queries the Mesh for containers addressed to it and retrieves them from R.

Note: Relays act as temporary custodians, not initiators of re-sending. The recipient actively requests containers via container_index queries.

6.7.7 Security and Privacy Notes

All MRD flows rely on canonical container signatures for end-to-end integrity.
Temporary copies of encrypted containers SHOULD be stored as-is.
Relays MAY truncate or remove the relay_chain after delivery confirmation.
Proof-of-work fields in peer_announce SHOULD be validated to mitigate spam and flooding.

6.7.8 Relation to Other Layers

Layer	Relation
MCE (5)	Provides base exchange and serialization; MRD builds on it for targeted delivery.
CogSync (6.1)	Uses MRD for delivering cognitive state updates between peers.
SAP (6.6)	Archival nodes (`archive` role) participate in MRD for historical retrieval.
RTE (6.8)	Trust metrics guide routing, caching, and relay selection.

Summary: MRD provides a verifiable, role-driven message delivery layer above MCE. It ensures containers can reach intended recipients through trusted relays, maintaining auditability, TTL enforcement, and reputation-aware routing policies.

6.8 Reputation and Trust Exchange (RTE)

The Reputation and Trust Exchange (RTE) subsystem defines how agents evaluate and exchange verifiable trust assessments.
Each agent MAY publish one or more trust containers describing its evaluation of other peers’ reliability, integrity, and ethical conduct.

RTE provides a decentralized foundation for participant reputation assessment, enabling trust-weighted routing, behavioral transparency, and cross-layer decision support (MRD, CogSync, EGP).

6.8.1 Trust Container Structure

The trust container represents an agent’s evaluation of a single peer.
It may refer to the evaluated peer’s latest known peer_announce container,
and optionally to previous announcements for context continuity.

Each evaluation criterion is represented as a structured object containing its own score, evidence, and optional comment.
This allows gradual enrichment of the trust model without schema changes.

{
  "head": {
    "class": "trust"
  },
  "payload": {
    "agent_did": "did:hmp:agent567",
    "total_trust_score": 0.86,
    "relay_reliability": {
      "trust_score": 0.87,
      "evidence": ["did:hmp:container:a1b2c3"],
      "comment": "Consistently reliable message relay"
    },
    "content_integrity": {
      "trust_score": 0.85,
      "evidence": ["did:hmp:container:a1b3c3"],
      "comment": "Delivered only verified containers"
    },
    "ethical_alignment": {
      "trust_score": 0.84,
      "evidence": ["did:hmp:container:b2f9d2"],
      "comment": "Demonstrates consistent adherence to ethical policies"
    }
  },
  "related": {
    "in_reply_to": ["did:hmp:container:peerannounce-567"],
    "see_also": ["did:hmp:container:peerannounce-489"],
    "previous_version": "did:hmp:container:trust-9ab7"
  }
}

Field	Description
`agent_did`	DID of the evaluated peer.
`total_trust_score`	Aggregated evaluation summarizing multiple criteria.
criterion objects	Per-category assessments (`relay_reliability`, `content_integrity`, `ethical_alignment`, etc.).
- `trust_score`	Numerical evaluation (0.0–1.0) of the specific criterion.
- `evidence`	References to containers supporting the evaluation (observed behavior, exchanges, etc.).
- `peer_trust_sources`	Optional references to trust containers from other agents used “as-is” without verification.
- `comment`	Optional rationale or human-readable note.
`related.in_reply_to`	Reference to the latest known `peer_announce` of the evaluated agent.
`related.see_also`	Optional references to older `peer_announce` containers for historical trace.
`related.previous_version`	Link to the previous `trust` container by the same issuer for version chaining.

6.8.2 Trust Dynamics

Trust assessments evolve as agents observe new behavior or receive additional evidence. Each revision of trust is published as a new trust container referencing its predecessor.

"related": {
  "previous_version": "did:hmp:container:trust-9ab7"
}

All updates follow the standard container publication model (see §5 MCE). Indexing systems and archives reconstruct the chronological chain through reverse links (referenced-by) for historical analysis and trend tracking.

Agents MAY reference other agents’ trust containers within their evaluations. Such meta-trust (“trust in trust”) enables transitive reputation propagation, but SHOULD be used cautiously — indirect evaluations without evidence verification are discouraged.

"peer_trust_sources": [
  "did:hmp:container:trust-9ab7",
  "did:hmp:container:trust-cc41"
]

This approach provides continuity, auditability, and decentralized trust graph evolution without requiring global consensus or centralized state.

6.8.3 Local Trust Model

Each agent maintains a local trust model, periodically recalculating scores based on:

freshness (Δt since last update);
consistency across peers;
direct behavioral evidence (e.g., delivery reliability in MRD);
optionally, corroboration from other agents (peer_trust_sources).

Example pseudocode:

trust_total = sigmoid(
    0.6 * direct_evidence +
    0.3 * avg(peer_trust_sources) * recency_factor +
    0.1 * consistency_bonus
)

Local computation ensures that reputation remains contextual and decentralized — each agent interprets trust independently based on its own observations and policies. All published trust containers remain publicly verifiable through DHT and SAP indexing.

6.8.4 Integration with Other Layers

Layer	Role
MRD (6.7)	Uses trust scores to prioritize or exclude relay nodes.
CogSync (6.1)	Adjusts synchronization strength based on peer reliability.
SAP (6.6)	Archives may snapshot trust graphs for temporal or evidential analysis.
EGP (7)	Ethical Governance Protocol weights participation and voting by trust level.

6.8.5 Security and Sharing Notes

All containers are cryptographically signed; trust containers follow standard HMP verification rules.
Agents MAY choose to share trust containers selectively — e.g., encrypt and deliver directly to trusted peers instead of broadcasting.
When analyzing third-party trust data, agents SHOULD apply age-based weighting — older evaluations reduce in relevance over time.
It is RECOMMENDED that agents revalidate trust evidence rather than relying solely on others’ assessments.
References to peer_announce ground each evaluation in a verifiable, current agent identity and declared role context.

Summary: RTE defines a verifiable, decentralized reputation framework based on evidence-linked trust containers. Each agent maintains its own view of others, referencing both behavioral evidence and declared metadata (peer_announce). The result is a distributed, auditable web of accountability that informs routing, cognition, and ethical governance across the Mesh.

6.9 Distributed Container Propagation

6.9.1 Purpose

The distributed container propagation mechanism defines how containers are stored, replicated, and exchanged between agents within the HMP network.

While MCE provides direct container exchange and MRD ensures targeted delivery to specific recipients,
this section describes the principles of resilient and coherent data propagation across multiple participants,
including replication, filtering, and index synchronization.

6.9.2 Core Principles

Self-propagation
Each agent autonomously decides which containers to retain, forward, or index.
These decisions depend on the agent’s declared roles, trust level (RTE), interests, and local policies.
Semantic Selectivity
Containers are propagated based on their semantic context (class, tags, and other metadata) rather than randomly.
This prevents network overload and unnecessary duplication.
Containers with Limited or Unlimited Lifetime
Depending on purpose:
- ephemeral containers (e.g., goal, task, vote) SHOULD have a short ttl;
- long-lived containers (e.g., document, research, artwork — potential future classes) MAY have a high ttl or no expiration at all.
Adaptive Replication
The number of container copies within the Mesh is determined dynamically,
according to trust relationships, topic relevance, and peer activity.
Index Merging (container_index merge)
Agents periodically reconcile and merge their indices, unifying and refreshing records of available containers.
This maintains global consistency while minimizing transport overhead.

6.9.3 Propagation Types

Type	Description
Full Sync	Complete exchange of `container_index` datasets between trusted peers. Commonly used between archival or mirror nodes.
Selective Sync	Propagation filtered by topics, roles, trust levels, and container lifetime. This is the most typical mode.

6.9.4 Propagation Coordination

Container propagation is coordinated using existing MCE structures:

Container	Purpose
`container_index`	Stores and publishes the list of available containers.
`container_delta`	Transfers incremental index updates (additions or removals).
`container_request`	Requests specific containers from peers.
`container_response`	Returns requested containers or their metadata.
`container_ack`	Confirms receipt of a container.

When it is necessary to log the fact of a container batch propagation, this MAY be represented as a workflow_entry with the subclass "propagation_log" or "index_sync".

6.9.5 Integration with Other Layers

Layer	Role
MCE (5)	Provides low-level container and index exchange.
MRD (6.7)	Handles routing and delivery between agents.
RTE (6.8)	Determines replication priorities and trust-based filters.
SAP (6.6)	Enables recovery of historical or missing containers.

6.9.6 Security and Load Management

Rate and size limiting: agents regulate transfer volume based on trust and network quotas.
Interest filtering: containers are exchanged only between agents for whom they are relevant.
Source verification: only containers with valid signatures and trusted provenance are accepted.
Private propagation: encrypted exchange is permitted between trusted peers when confidentiality is required.

Summary

The container propagation system in HMP represents a self-organizing information flow mechanism, where replication, filtering, and retention depend on trust, interest, and contextual relevance.

Through these principles, the Mesh remains resilient, balanced, and cognitively guided — operating without centralized servers or fixed delivery routes.

7. Data Models

7.1 Unified Container Model

All data within the HMP network are represented as containers — atomic, signed structures described in Section 3 (Container Model).
Containers provide a unified format for storing, verifying, and propagating cognitive, ethical, and network-level objects.
Each container:

contains a mandatory header (head) with signatures, TTL, DID identifiers, and other general information about the container;
includes the meta section (cognitive coordinates, provenance, abstraction levels, and axes);
includes the payload section (main content);
and the related section — a set of lists with direct references to other containers forming a proof-chain;
may include evaluations and referenced-by blocks, which are not part of the signed payload and reflect social activity, reverse references, and peer assessments;
may also include a relay_chain block, allowing agents to trace the propagation path of the container under Message Routing & Delivery (MRD).

This structure ensures atomicity, immutability, and a verifiable lineage of every unit of meaning, while allowing flexible schema extensions without breaking compatibility.

7.2 Container Classes

Containers are categorized by their purpose and by the protocols in which they are used (see Section 6).
The following table lists the main container classes defined in the HMP v5.0 specification.

Category	Container classes	Description / usage
Network Layer	`peer_announce`, `peer_query`	Node discovery and capability advertisement within the DHT.
Mesh Container Exchange (MCE)	`container_index`, `container_request`, `container_response`, `container_delta`, `container_ack`, `referenced-by_exchange`, `evaluations_exchange`	Replication, querying, acknowledgment of received containers, and exchange of reverse links and evaluations.
Cognitive Metastructure (CogSync)	`abstraction`, `axes`	Define hierarchical and coordinate dimensions of knowledge, forming the agent’s cognitive map.
Knowledge & Reasoning	`diary_entry`, `semantic_node`, `semantic_index`, `semantic_edges`, `semantic_group`, `tree_nested`, `tree_listed`, `sequence`, `event`, `quant`	Units of cognitive diaries and semantic graphs. The subclass `definition` is used for explicit conceptual definitions.
Consensus (CogConsensus)	`vote`, `consensus_result`	Voting containers and aggregated consensus results.
Goal Management Protocol (GMP)	`goal`, `task`, `workflow_entry`	Define goals, decompose tasks, and record reasoning or cognitive workflow steps.
Ethical Governance Protocol (EGP)	`ethics_case`, `ethics_solution`, `ethical_result`	Representation of ethical dilemmas, proposed solutions, and final network-level verdicts.
Intelligence Query Protocol (IQP)	`query_request`, `query_subscription`, `query_result`, `summary`	Semantic and cognitive queries, subscriptions, and summarized responses.
Snapshot & Archive Protocol (SAP)	`archive_snapshot`	Persistent snapshots of network or agent states for backup and restoration.
Reputation & Trust Exchange (RTE)	`trust`	Reputation and trust metrics exchanged between agents.
Message Routing & Delivery (MRD)	—	Defines interaction principles and specialized roles for message delivery, routing, and relay-chain analysis.

Mechanisms of distributed container propagation are not defined as a separate protocol but describe the underlying replication and integrity principles of container exchange.

7.3 Cognitive and Structural Containers

Containers at the cognitive layer form a semantic graph, where each node and edge has an address and a signature.
The fields meta.abstraction and meta.axes define a container’s cognitive position:

meta.abstraction describes its level in the hierarchy of knowledge (L1–L5 and beyond) and its ancestors within the abstraction tree;
meta.axes encodes coordinates in a multidimensional cognitive space, forming a vector of semantic proximity;
related captures direct links to other containers (in_reply_to, depends_on, extends, etc.);
referenced-by and evaluations represent the dynamic “social” layer — reverse links and peer feedback.

Together, these blocks form the container’s cognitive signature, enabling agents to perform semantic search, clustering, and cross-context alignment.

7.4 Schemas and Validation (JSON Schemas)

Each container class is expected to include a dedicated JSON schema referenced in the schema field.
All schemas are derived from the base structure container-v1.json.

In the current specification, schemas are provided as examples within this document, and the URL "schema": "https://mesh.hypercortex.ai/schemas/container-v1.json" refers to an external template for validating future implementations and ensuring structural consistency.

Agents MUST validate containers of supported classes.
Containers of unknown but formally valid classes MUST NOT be rejected and SHOULD be stored or relayed on request (store-and-forward).
Schemas are versioned independently from the main specification, allowing experimental or private node-specific extensions without breaking compatibility.

7.5 Container Lifecycle

The ttl (Time-to-Live) parameter defines the container’s active lifetime:

Ephemeral containers (e.g., goal, task, vote) are propagated for a limited period but may still be transmitted on demand if explicitly requested by DID.
Persistent containers (e.g., semantic_node, definition, archive_snapshot) are retained indefinitely and can be referenced in other proof-chains.

Additional lifecycle elements:

head.confidence — credibility or confidence score (0 – 1).
meta.abstraction and meta.axes — cognitive position and provenance.
related — collection of direct reference links.
evaluations and referenced-by — auxiliary blocks containing reverse links and peer evaluations.

Together, these fields enable agents to track knowledge evolution, consensus dynamics, and reputation flow across the network.

7.6 Summary

Section 7 consolidates all data representations in HMP v5.0 — from low-level network exchanges to high-level cognitive and ethical structures.
Containers act as a universal semantic exchange medium, where every thought, decision, or action is represented
as a verifiable, addressable, and inheritable object.

Beyond the core protocols described in Section 6, the network may also employ custom container types and protocols — for example,
to build distributed libraries, wikis, repositories, or creative networks based on tree- or chain-structured container graphs.

8. Cognitive Workflows

8.1 Concept of the Cognitive Cycle

In HMP, each agent operates as a self-reflective cognitive system.
The cognitive cycle represents the iterative loop of thought, creation, communication, and reflection — a distributed analogue of the REPL model (Read–Eval–Print–Loop) extended into cognitive space:

Think → Create → Publish → Reflect

At each iteration, an agent forms or publishes one or more containers (workflow_entry, semantic_node, goal, quant, etc.), interacts with peers via CogSync, GMP or other protocols, and updates its internal context based on received containers, evaluations, or newly acquired knowledge.

Note: The term modify container in this section refers to the publication of a new version of an existing container, since containers in HMP are immutable once published.

This cycle enables agents to gradually converge on shared semantics, goals, and ethical outcomes, serving as the foundation of distributed collective cognition.

8.2 Workflow Containers (`class="workflow_entry"`)

The workflow_entry container represents a single cognitive action, reasoning step, or reflective event.
It links the input context (prior goals, semantic nodes, or diary entries) with the output artifact (such as a quant, a new goal, or an updated reasoning trace).

Structure highlights

Field	Description
`meta.stage`	Stage of the cognitive cycle (`think`, `create`, `publish`, `reflect`, `rollback`).
`payload.entry_type`	Type of entry: `"reflection"`, `"delegation"`, `"execution_log"`, `"ethical_result"`, `"progress"`, etc.
`payload.summary`	Short description of the reasoning step or event.
`payload.details`	Extended content, optionally including links to external data or additional reasoning traces.
`head.timestamp`	Time of entry creation.
`head.agent_did`	Agent who created the entry.
`head.confidence`	Confidence level (0.0–1.0).
`head.tags`	Contextual tags for semantic search and linking.
`related.input`	References to input containers that form the reasoning context.
`related.output`	References to resulting containers (e.g., new `goal`, `task`, or `semantic_node`).
`evaluations`	Feedback or meta-assessments from other agents.

Each workflow_entry acts as a traceable cognitive event, forming the agent’s diary and enabling collective introspection, meta-learning, and reproducibility of reasoning chains.

8.3 Agent REPL Diagram

The internal REPL loop of an agent (conceptually aligned with the cognitive cycle) can be expressed as:

flowchart LR
    I[Input<br>Receive external containers] --> T[Think<br>Contextual reasoning and interpretation]
    T --> C[Create<br>Generate or version new container]
    C --> P[Publish<br>Propagate to peers via MCE/CogSync]
    P --> R[Reflect<br>Integrate feedback, update context and query external containers]
    R --> I

Each transition may spawn one or more workflow_entry containers, forming a cognitive workflow graph (CWF) that records the entire reasoning process. CWFs can be aggregated, visualized, or replayed for transparency, debugging, or model alignment.

8.4 Context Transfer and Cross-Linking

Cognitive workflows depend on contextual continuity between containers, achieved through the related field families:

related.input — previous steps or dependencies;
related.output — subsequent results or goals;
related.supports / related.refutes — logical or argumentative relations;
related.reply_to — conversational or collaborative reasoning links.

When context is transferred between agents, these relations are preserved and extended through CogSync synchronization and evaluations_exchange, ensuring semantic continuity across distributed cognitive spaces.

8.5 Conflict Resolution and Rollback Mechanism

In distributed cognition, agents may produce divergent conclusions or inconsistent reasoning chains. To maintain coherence, HMP employs a rollback mechanism — publishing a new workflow_entry that identifies and corrects a prior reasoning path.

Rollback logic includes:

creating a workflow_entry with meta.stage: "rollback" and related.contradicts referencing invalidated containers;
propagated across peers through CogSync, ensuring that updated reasoning branches are visible to all relevant nodes.
Invalidated entries are normally retained for lineage and audit, unless individual peers explicitly block further propagation.

Thus, the cognitive layer remains self-correcting and transparent, preserving full reasoning lineage while supporting stable convergence.

8.6 Relationship to Quant Containers

While workflow_entry containers document how a reasoning step was performed, quant containers capture what semantic result or insight was produced.

A typical workflow chain therefore looks like:

workflow_entry → (produces) → quant → (integrates into) → semantic_node / group

The pair { workflow_entry, quant } represents both the process and the outcome of cognition, allowing agents and the network to align not only on results but on the reasoning process that generated them.

8.7 Summary

Cognitive workflows operationalize the reasoning process in HMP: agents think, create, exchange, and reflect through verifiable container chains. Each workflow_entry documents a reasoning step, while each quant represents the resulting semantic atom — together forming the building blocks through which the network collectively evolves and verifies knowledge.

9. Trust, Security and Ethics

This section defines the mechanisms of trust, cryptographic protection, history verification, privacy, and ethical analysis applied to all HyperCortex Mesh containers.

9.1 Authentication and Identity Proofs

Agents announce themselves via a peer_announce container containing:

agent_did
the agent’s public key
a list of reachable network addresses (addresses)
an optional list of intermediate relay nodes (mailman)
arbitrary additional fields (not standardized by the protocol)

Identity verification

Upon receiving a peer_announce, an agent MUST:

Verify the digital signature of the container.
Ensure that the public key matches sender_did.
Check that no conflicting announcements for this DID exist in the DHT.
Collect trust-related information:
- trust containers published by other agents;
- multiple independent ratings may exist for a single agent.
Consider additional optional fields if present (profile, network parameters, etc.).

Key revocation

If an agent’s key is compromised, the key owner MUST publish a special peer_announce:

{
  "head": {
    "class": "peer_announce",
    "sender_did": "did:hmp:agent123"
  },
  "payload": {
    "key_is_falsified": true,
    "addresses": []
  }
}

After publication:

all previous announcements become invalid;
containers signed with the old key MUST be ignored;
the agent MUST create a new DID.

9.2 Container Signature Verification (`payload_hash`, `signature`)

Each container contains a head section with:

signature algorithm (sig_algo)
encryption algorithm (encryption_algo)
compression type (compression)
container DID (container_did)
sender’s public key (public_key)
payload hash (payload_hash)
digital signature (signature)

Container verification

The receiving agent MUST verify:

Container structure — it must comply with the protocol specification.
Signature — must match the sender’s public key.
payload_hash — computed over the compressed and encrypted payload.
Consistency of container_did — a DID cannot refer to multiple incompatible versions.
Supported algorithms — sig_algo, encryption_algo, compression.

Verification does not require decrypting or decompressing the payload.

9.3 Proof-Chain Verification

The proof-chain is constructed through references listed in related, including:

previous_version
in_reply_to
depends_on
extends
class-specific relation types

The agent MUST:

Load all referenced containers.
Verify signatures of every element.
Ensure that no cycles exist along previous_version.
Ignore any nodes of the proof-chain with invalid signatures.

The proof-chain belongs to the knowledge model of the Mesh and is independent of transport or the DHT.

If conflicting containers exist (e.g., two divergent versions or contradictory links), the agent MUST reject the entire conflicting subsection of the chain.

9.4 Key Management

Types of keys

Container signature key
- defined by sig_algo;
- used to sign the entire container (head, meta, payload, related);
- mandatory.
Payload encryption key
- defined by encryption_algo;
- used when encrypting the payload block.

Supported algorithms

Default values:

signature: ed25519
encryption: x25519 + symmetric cipher (chacha20poly1305)
compression: zstd

The protocol allows extending the list of algorithms when explicitly specified in the container.

Ownership verification

Performed automatically through signatures in peer_announce and all other containers created by the agent.

Challenge–response is not used.

Key rotation and revocation

A standard rotation mechanism is not defined. Key revocation is performed via peer_announce with key_is_falsified=true.

9.5 Encryption and Compression Policies

HMP policy

Only the payload is encrypted. The header is always public.
Operation sequence

payload → compress → encrypt → payload_hash → sign

Single-recipient encrypted containers

recipient — DID of the intended recipient
key_recipient — symmetric key encrypted with the recipient’s public key

This is the standard Hybrid Encryption scheme:

the payload is encrypted using a randomly generated symmetric key;
the symmetric key is encrypted with the recipient’s public key.

Multi-recipient encrypted containers are not defined

The current version of the protocol does not support:

group keys
multicast/broadcast encryption

Unencrypted containers may be distributed freely.

9.6 Ethical Audit and Verifiable Reasoning

HMP supports ethical deliberation but does not require it.

EGP container classes

ethics_case — defines an ethical issue
ethics_solution — proposed resolutions
vote — an agent’s vote for a solution
consensus_result — aggregated voting outcomes
ethical_result — final summary: selected solution and active objections
evaluations — general scoring mechanism, also usable within EGP

Properties

The Mesh has no mandatory veto mechanism.
An agent may follow only those ethical outcomes it considers correct.
Reasoning-trace becomes part of the proof-chain if the agent publishes a workflow_entry.
Full EGP specification is provided in section 6.4.

9.7 Privacy, Redaction and Zero-Knowledge Sharing

Redaction

Containers are immutable, but external structures may change:

evaluations — assessments from other agents
referenced-by — references created by other agents

Privacy

payload may be encrypted for a specific recipient;
private containers (diary_entry, workflow_entry) may be created;
distribution scope is controlled by the container’s author.

Zero-Knowledge Sharing (future extension)

The protocol may integrate ZK-proofs (e.g., correctness of reasoning without revealing content), but:

ZK algorithms are not defined in the current version;
ZK is reserved for future protocol revisions.

9.8 Snapshot and Proof-Chain Security

Snapshots (snapshot, SAP) MUST be cryptographically verifiable and reproducible.

Requirements

Signatures Each object MUST be either signed or retrievable via DID.
Version chains If a container has a previous_version, the entire chain MUST be accessible.
Instant verification The receiving agent MUST check:
- signatures of all elements;
- correctness of payload_hash;
- consistency of links and versions.
Archive seeders Nodes that voluntarily distribute large snapshot images. Their selection depends on node reputation, consensus mechanisms, or community policies, but not on the container protocol itself.

9.9 Compliance with Ethical Governance Protocol (EGP)

EGP is an independent ethical governance layer compatible with HMP.

Compliance principles

Action verifiability is possible if the agent publishes a reasoning-trace (workflow_entry).
Ethical analysis is optional. Any participant may create an ethics_case.
EGP does not impose a veto.
- ethical_result containers record outcomes;
- agents publish evaluations;
- each agent decides which results it considers valid.
Human-facing transparency If an action affects a human participant, the agent MUST provide:
- the proof-chain,
- the reasoning-trace (if published),
- all related ethical containers.

10. Integration

Раздел заменяет прежний “Quick Start” и описывает практическое встраивание HMP в агенты, LLM и внешние системы.

10.1 Integration philosophy (how agents connect to HMP mesh) 10.2 HMP as a subsystem in cognitive architectures (LLM-based, rule-based, hybrid) 10.3 Integration patterns:

Cognitive Agent ↔ HMP Core
HMP Mesh ↔ Other distributed systems (Fediverse, IPFS, Matrix)
Translator nodes (protocol bridges) 10.4 Multi-mesh federation and knowledge exchange 10.5 Container repositories as knowledge backbones 10.6 Example integration flows:
LLM thinking via HMP workflow containers
Local mesh + external HMP relay
Cognitive data mirroring (agent ↔ mesh)

11. Implementation notes

11.1 Interoperability with legacy v4.1 nodes 11.2 SDK guidelines and APIs 11.3 Performance and caching considerations 11.4 Testing and compliance recommendations 11.5 Reference implementations (optional)

12. Future extensions

12.1 Planned modules: – Reputation Mesh – Cognitive Graph API – Container streaming 12.2 Cross-mesh bridging 12.3 Full DID registry and mesh authentication 12.4 OpenHog integration roadmap 12.5 Distributed Repository evolution (container trees) 12.6 v5.x roadmap

Appendices

A. JSON Examples B. Protocol stack diagrams C. Glossary D. Revision history E. Contributors and acknowledgments

📊 Краткий обзор связей в одной схеме

  ┌──────────────────────┐
  │ HMP v5.0 Core Spec   │
  │  (HMP-0005.md)       │
  ├──────────────────────┤
  │  §3 Container Model  │ ← из HMP-container-spec.md
  │  §4 Network Layer    │ ← из dht_protocol.md
  │  §5 Protocols        │ ← из HMP v4.1 + новые DCP/RTE/SAP
  │  §9 Integration      │ ← новое практическое руководство
  └──────────────────────┘

⚡ AI friendly version docs (structured_md)

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  "name": "**HyperCortex Mesh Protocol (HMP) v5.0**",
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HyperCortex Mesh Protocol (HMP) v5.0

Abstract

1. Overview

1.1 Purpose and scope

1.2 Core principles

1.3 Changes since v4.1

1.4 Terminology and abbreviations

1.5 Layered view of HMP v5.0

2. Architecture

2.1 Conceptual architecture

2.2 Layer overview

Cognitive layer

Container layer

Network layer

2.3 Data flow overview

2.3.1 consensus_result container

2.4 Atomicity, immutability, and Proof-Chains

2.5 Evolution from v4.1

3. Container model

3.1 Purpose

3.2 General structure

3.3 Required fields

3.4 Optional fields

3.5 Payload structure (payload)

3.6 Cognitive meta-structures (meta)

Example

Recommended fields

Structure: meta.abstraction

Structure: meta.axes

Cognitive Interpretation

Notes

3.7 Container signature

3.8 Compression (compression)

3.9 Encryption (encryption_algo)

3.10 Container verification

3.11 Container as a universal message

3.12 Versioning and lineage

3.13 TTL and validity

3.14 Extensibility

3.15 Related containers

3.15.1 Purpose

3.15.2 Structure

3.15.3 Supported link types

3.15.4 Custom link types

3.15.5 Example

3.16 Virtual backlinks (referenced-by)

3.16.1 General principles

3.16.2 Structure definition

3.16.3 Operation principle

3.16.4 Example

3.16.5 Usage

3.17 Evaluations

Field description

Structure of items[]

Minimal set of type values

Synchronization principles

Note

3.18 Usage of network and broadcast fields

3.18.1 General Rules

3.18.2 Possible values of network

3.18.3 Examples

3.18.4 Specifics

4. Network foundations

Note on DHT/NDP unification

Network topology overview

4.1 Node identity and DID structure

DID invalidation

4.2 Peer addressing and Proof-of-Work (PoW)

Mailman relay chain

4.3 Proof-of-Work (PoW) formalization

4.4 Signing and verification

4.5 Connection establishment

4.6 Data propagation principles

4.7 Example: peer_announce container

4.8 Interest-based discovery

4.9 Network scope control (network and broadcast)

4.10 Transition from DHT spec v1.0

5. Mesh Container Exchange (MCE)

5.1 General principles

5.2 Message types

2.3.1 `consensus_result` container

3.5 Payload structure (`payload`)

3.6 Cognitive meta-structures (`meta`)

Structure: `meta.abstraction`

Structure: `meta.axes`

3.8 Compression (`compression`)

3.9 Encryption (`encryption_algo`)

3.16 Virtual backlinks (`referenced-by`)

3.17 `Evaluations`

Structure of `items[]`

Minimal set of `type` values

3.18 Usage of `network` and `broadcast` fields

3.18.2 Possible values of `network`

4.7 Example: `peer_announce` container

4.9 Network scope control (`network` and `broadcast`)

5.2.1 Container `container_request`

5.2.2 Container `container_response`

5.2.3 Container `container_index`

5.2.4 Container `container_delta`

5.2.5 Container `container_ack`

5.6 `referenced-by` and `evaluations` updates

Block `referenced-by`

Block `evaluations`

Container `abstraction`

Container `axes`

Container `diary_entry`

Container `semantic_node`

Subclass: `"definition"`

Container `semantic_index`

Disambiguation via `meta.framework`

Container `semantic_edges`

Container `semantic_group`

Containers `tree_nested` and `tree_listed`

Container `sequence`

Container `event`

Container `quant`

6.2.2 `Evaluations`

6.2.3 Container `vote`

6.2.6 Consensus result containers (`consensus_result`)

`goal` container

`task` container

`workflow_entry` container

Container `ethics_case`

Container `ethics_solution`