CHLOM Metaprotocol — Credential Revocation & Lifecycle Management — Architecture and Implementation

This document defines the Credential Revocation & Lifecycle Management layer of the CHLOM Metaprotocol. It provides the full technical and operational blueprint for issuing, maintaining, suspending, rotating, and revoking verifiable credentials in a way that preserves compliance, security, and interoperability across Web2, Web3, multi-chain, and biometric-bound DID ecosystems. This system is patent-pending under CrownThrive, LLC, and requires licensing from crownthrive.com for any integration.

1. Purpose & Scope

The revocation & lifecycle management system ensures that credentials:

• Remain valid only for their intended lifespan.
• Can be suspended or revoked in real-time across all connected networks.
• Support biometric-based credential re-enrollment.
• Are verifiable even after revocation (for audit and compliance purposes).
• Maintain state synchronization across CHLOM’s Synchronization Bus and multi-chain environments.

2. Lifecycle Stages

1. Issued: Credential is generated, bound to a DID + biometric hash, and anchored on-chain.
2. Active: Credential is recognized as valid across all CHLOM-enabled services.
3. Suspended: Temporarily disabled without full revocation (e.g., pending compliance checks).
4. Rotated: Credential regenerated with new keys or claims while maintaining identity binding.
5. Revoked: Credential permanently invalidated and removed from valid registries.
6. Archived: Credential metadata stored for audit purposes but inaccessible for use.

3. Revocation Architecture

• On-Chain Revocation Registry: Maintains state of credential validity in smart contracts.
• Off-Chain Revocation Index: Mirrors on-chain state for high-speed verification.
• Event-Driven Updates: Changes broadcasted via CHLOM Synchronization Bus.
• ZK-Compatible Proofs: Allow verifiers to confirm revocation status without revealing credential details.

4. Solidity Reference Implementation

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

contract CredentialRevocationRegistry {
    enum Status { Active, Suspended, Revoked }
    
    struct CredentialRecord {
        Status status;
        uint256 updatedAt;
    }

    mapping(bytes32 => CredentialRecord) public credentials;

    event CredentialStatusChanged(bytes32 indexed credentialHash, Status status, uint256 timestamp);

    function setStatus(bytes32 credentialHash, Status newStatus) external {
        credentials[credentialHash] = CredentialRecord(newStatus, block.timestamp);
        emit CredentialStatusChanged(credentialHash, newStatus, block.timestamp);
    }

    function isRevoked(bytes32 credentialHash) external view returns (bool) {
        return credentials[credentialHash].status == Status.Revoked;
    }
}

5. Off-Chain Synchronization

const { ethers } = require('ethers');
const provider = new ethers.JsonRpcProvider(process.env.RPC_URL);
const registry = new ethers.Contract(REGISTRY_ADDRESS, REGISTRY_ABI, provider);

registry.on('CredentialStatusChanged', (credentialHash, status, timestamp) => {
    console.log(`Status change: ${credentialHash} → ${status} @ ${new Date(timestamp * 1000).toISOString()}`);
    // Update off-chain index and trigger downstream compliance workflows
});

6. Compliance & Security Controls

• Biometric Re-Enrollment: When credentials are rotated or revoked, re-enrollment requires liveness and biometric matching.
• Jurisdictional Policy Hooks: Revocation can be triggered by regulatory events.
• Multi-Sig Approval: High-risk revocations require quorum from CHLOM governance.
• Cross-Network Enforcement: Revocation events replicated across all connected chains.

7. Appendices

A. Revocation Event Data Model

{
  "credentialHash": "0xabc123...",
  "status": "Revoked",
  "updatedAt": "2025-08-08T00:00:00Z",
  "reason": "Key compromise detected",
  "initiator": "did:chlom:0x456..."
}

B. Integration Guidelines

• All CHLOM-compatible verifiers MUST check on-chain revocation state before accepting credentials.
• Off-chain mirrors MUST reconcile with on-chain data at regular intervals.
• Revocation APIs MUST be signed and authenticated using CHLOM’s DID-Auth mechanism.

8. Patent & Licensing Protections

The CHLOM Credential Revocation & Lifecycle Management system is patent-pending and covers on-chain/off-chain revocation coordination, biometric-bound re-enrollment, and ZK-compatible revocation proofs. Any use without a license from CrownThrive, LLC is strictly prohibited.

Next: CHLOM Multi-Factor Access Enforcement Layer — Architecture, APIs, and Reference Implementations.