{"authentication":{"d3cipher_credential":{"format":"D3cipher {agent_id}:{state_hash}","header":"Authorization","verify_endpoint":"/v1/verify/{agent_id}"}},"description":"Cryptographic trust layer for AI agents: real-time credential verification, tamper-evident audit chain, mutual non-repudiation, governance gating.","extension_uri":"https://api.d3cipher.ai/extensions/v1","name":"LockStock Protocol","version":"1.0"}