CHLOM Metaprotocol — Compliance Event Bus — Real-Time Policy Propagation & Enforcement Mechanisms

This document defines the Compliance Event Bus (CEB) within the CHLOM Metaprotocol. The CEB serves as the real-time communication backbone for propagating compliance, governance, and licensing policy updates across all connected chains, Web2/enterprise systems, and CHLOM-enabled applications. It ensures that every enforcement point—on-chain or off-chain—has synchronized, verifiable policy state in milliseconds.

1. Purpose & Scope

The CEB enables:

• Immediate propagation of new or updated compliance policies.
• Event-driven enforcement across distributed nodes and multi-chain environments.
• Cryptographic signing of all policy events for tamper-proof audit.
• Seamless integration with DIDs, biometric multi-sig authentication, and TLAAS/DLA layers.
• Guaranteed policy version consistency for governance and licensing decisions.

2. Architecture Overview

• Event Publisher: Smart contracts and off-chain services that emit signed compliance events.
• Event Queue: Distributed messaging layer (e.g., NATS, Kafka, or custom P2P) for asynchronous delivery.
• Event Subscribers: CHLOM components (governance routers, compliance engines, registry mirrors) that process events in real-time.
• Verification Layer: Validates event signatures, timestamps, and source DID identity.
• Replay Protection: Ensures old events cannot override current policy.

3. Data Model (JSON Schema)

{
  "eventId": "uuid",
  "policyId": "string",
  "version": "string",
  "hash": "sha256-hex",
  "timestamp": "2025-08-08T12:00:00Z",
  "eventType": "CREATED|UPDATED|REVOKED",
  "issuedBy": "did:chlom:entity",
  "signature": "base64-encoded"
}

4. Solidity Event Publisher Example

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.24;

contract ComplianceEventPublisher {
    event PolicyEvent(
        string eventId,
        string policyId,
        string version,
        string hash,
        string eventType,
        uint256 timestamp
    );

    function publishEvent(
        string calldata eventId,
        string calldata policyId,
        string calldata version,
        string calldata hash,
        string calldata eventType
    ) external {
        // DID + biometric multi-sig check here
        emit PolicyEvent(eventId, policyId, version, hash, eventType, block.timestamp);
    }
}

5. Off-Chain Event Subscriber Example (Node.js)

const WebSocket = require('ws');
const { verifySignature } = require('./cryptoUtils');

const ws = new WebSocket('wss://compliance-bus.chlom.io');

ws.on('message', async (message) => {
  const event = JSON.parse(message);

  if (!verifySignature(event.issuedBy, event.signature, event.hash)) {
    console.error('Invalid event signature');
    return;
  }

  console.log(`Policy Event Received: ${event.policyId} - ${event.eventType}`);
  // Apply policy update to local enforcement engine
});

6. Enforcement Workflow

1. Policy updated in the Policy & Compliance Registry.
2. Event Publisher emits signed compliance event.
3. Event Bus distributes event to all subscribers.
4. Subscribers verify signature, update local state, and enforce immediately.

7. Security & Audit

• All events signed with DID + fingerprint-bound private keys.
• SHA-256 policy hashes ensure immutability.
• Event replay protection with monotonic counters.
• Event logs stored in the CHLOM Audit Layer for regulatory inspection.

8. Patent & Licensing Protections

The Compliance Event Bus is patent-pending. It covers distributed, cryptographically-signed, real-time compliance propagation for hybrid Web2/Web3 and multi-chain systems. Licensing is mandatory via crownthrive.com for any implementation.

Next: CHLOM Inter-Protocol Messaging Layer — Unified Communication for Web2, Web3, and Multi-Chain Environments.