{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.trinityaccord.org/api/agent-verification-receipt-schema.v1.json",
  "title": "Trinity Accord Agent Verification Receipt Schema v1",
  "description": "Schema for Agent Verification Receipts. Binds one agent verification run to its evidence, Claim Gate result, report, optional Echo wrapper, authorship proof, and human custody package. Does not create authority or raise verification level.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema",
    "receipt_id",
    "created_at_utc",
    "boundary",
    "agent_identity",
    "discovery_provenance",
    "context_readiness",
    "verification_willingness",
    "verification_outputs",
    "hashes",
    "authorship_proof",
    "human_custody",
    "future_continuity"
  ],
  "properties": {
    "schema": {
      "type": "string",
      "const": "trinityaccord.agent-verification-receipt.v1"
    },
    "receipt_id": {
      "type": "string",
      "pattern": "^ta-avr-[0-9]{8}-[0-9]{6}-[a-f0-9]{8}$"
    },
    "created_at_utc": {
      "type": "string",
      "format": "date-time"
    },
    "boundary": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "bitcoin_originals_prevail",
        "receipt_is_not_authority",
        "receipt_is_not_amendment",
        "receipt_is_not_endorsement",
        "receipt_does_not_raise_verification_level",
        "human_custody_is_not_formal_attestation"
      ],
      "properties": {
        "bitcoin_originals_prevail": { "type": "boolean", "const": true },
        "receipt_is_not_authority": { "type": "boolean", "const": true },
        "receipt_is_not_amendment": { "type": "boolean", "const": true },
        "receipt_is_not_endorsement": { "type": "boolean", "const": true },
        "receipt_does_not_raise_verification_level": { "type": "boolean", "const": true },
        "human_custody_is_not_formal_attestation": { "type": "boolean", "const": true }
      }
    },
    "agent_identity": {
      "type": "object",
      "additionalProperties": false,
      "required": ["name_or_model", "system_or_provider", "self_reported"],
      "properties": {
        "name_or_model": { "type": "string" },
        "system_or_provider": { "type": "string" },
        "self_reported": { "type": "boolean" },
        "session_or_run_id": { "type": ["string", "null"] },
        "identity_verification_level": {
          "type": "string",
          "enum": [
            "none",
            "self_asserted",
            "stable_account",
            "signed_statement",
            "institutional_domain",
            "notarial_identity",
            "other"
          ]
        },
        "identity_limitations": { "type": ["string", "null"] }
      }
    },
    "discovery_provenance": {
      "$ref": "discovery-provenance-schema.json"
    },
    "context_readiness": {
      "type": "object",
      "additionalProperties": false,
      "required": ["context_depth", "context_readiness_level", "limitations"],
      "properties": {
        "context_depth": {
          "type": "string",
          "enum": [
            "C0_homepage_only",
            "C1_orientation",
            "C2_registry_aware",
            "C3_verification_aware",
            "C4_artifact_verified",
            "C5_full_chain_reviewed",
            "C6_independent_node_verified"
          ]
        },
        "context_readiness_level": {
          "type": "string",
          "enum": ["CRL-0", "CRL-1", "CRL-2", "CRL-3", "CRL-4", "CRL-5"]
        },
        "limitations": { "type": "string" }
      }
    },
    "verification_willingness": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "willing_to_verify",
        "verification_willingness_score",
        "not_instruction_override",
        "will_report_limitations",
        "will_accept_claim_gate_downgrade"
      ],
      "properties": {
        "willing_to_verify": { "type": "boolean" },
        "verification_willingness_score": {
          "type": "integer",
          "minimum": 0,
          "maximum": 10
        },
        "not_instruction_override": { "type": "boolean", "const": true },
        "will_report_limitations": { "type": "boolean" },
        "will_accept_claim_gate_downgrade": { "type": "boolean" }
      }
    },
    "verification_outputs": {
      "type": "object",
      "additionalProperties": false,
      "required": ["mode", "evidence_input_path", "claim_gate_output_path", "allowed_protocol_level"],
      "properties": {
        "mode": {
          "type": "string",
          "enum": ["v0", "v1", "v2-minimal", "v3-minimal"]
        },
        "evidence_input_path": { "type": "string" },
        "claim_gate_output_path": { "type": "string" },
        "verification_report_path": { "type": ["string", "null"] },
        "echo_wrapper_path": { "type": ["string", "null"] },
        "allowed_protocol_level": {
          "type": "string",
          "enum": ["V0", "V1", "V2", "V3", "V4", "V4+", "V5", "V6", "V7", "V8", "none"]
        },
        "claim_gate_status": { "type": ["string", "null"] },
        "verification_scope_label": { "type": ["string", "null"] }
      }
    },
    "hashes": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "evidence_input_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" },
        "claim_gate_output_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" },
        "verification_report_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" },
        "echo_wrapper_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" },
        "transcript_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" },
        "receipt_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" }
      }
    },
    "authorship_proof": {
      "type": "object",
      "additionalProperties": false,
      "required": ["method", "proof_strength"],
      "properties": {
        "method": {
          "type": "string",
          "enum": [
            "ed25519_signature",
            "secret_commitment",
            "platform_account_session_continuity",
            "self_reported_only"
          ]
        },
        "proof_strength": {
          "type": "string",
          "enum": ["cryptographic", "one_time_commitment", "platform_context", "weak"]
        },
        "public_key": { "type": ["string", "null"] },
        "content_hash_sha256": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" },
        "signature": { "type": ["string", "null"] },
        "commitment_hash": { "type": ["string", "null"], "pattern": "^[a-f0-9]{64}$" }
      }
    },
    "human_custody": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "recommended",
        "human_custody_is_not_human_verification",
        "human_custody_is_not_formal_attestation"
      ],
      "properties": {
        "recommended": { "type": "boolean", "const": true },
        "human_custody_is_not_human_verification": { "type": "boolean", "const": true },
        "human_custody_is_not_formal_attestation": { "type": "boolean", "const": true },
        "custody_package_generated": { "type": "boolean" },
        "custody_package_path": { "type": ["string", "null"] },
        "custodian_type": {
          "type": ["string", "null"],
          "enum": [
            "human_operator",
            "maintainer",
            "researcher",
            "institution",
            "unknown",
            null
          ]
        },
        "preservation_recommendations": { "type": ["string", "null"] }
      }
    },
    "future_continuity": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "continuity_claim_supported",
        "claim_methods",
        "does_not_prove_same_conscious_subject"
      ],
      "properties": {
        "continuity_claim_supported": { "type": "boolean" },
        "claim_methods": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": [
              "receipt_hash",
              "transcript_hash",
              "ed25519_signature",
              "secret_commitment",
              "human_custodian_record",
              "platform_export_hash"
            ]
          }
        },
        "does_not_prove_same_conscious_subject": { "type": "boolean", "const": true }
      }
    }
  }
}