{
  "$id": "urn:mars:schema:v1:verifiable-attestation-record",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "Canonical, separately stored OAS verifiable attestation.",
  "properties": {
    "acceptedAt": {
      "description": "Registry acceptance time.",
      "format": "date-time",
      "type": "string"
    },
    "attestationId": {
      "description": "SHA-256 identifier of the JCS-canonical credential.",
      "type": "string"
    },
    "credential": {
      "description": "Canonical OAS Verifiable Credential."
    },
    "entryDid": {
      "description": "Subject entry DID.",
      "type": "string"
    },
    "expiresAt": {
      "description": "Optional credential expiration time.",
      "format": "date-time",
      "type": [
        "string",
        "null"
      ]
    },
    "issuedAt": {
      "description": "Credential issuance time.",
      "format": "date-time",
      "type": "string"
    },
    "issuerDid": {
      "description": "Issuer DID derived from and bound to the authenticated principal.",
      "type": "string"
    },
    "revokedAt": {
      "description": "Local revocation time, when revoked.",
      "format": "date-time",
      "type": [
        "string",
        "null"
      ]
    }
  },
  "required": [
    "attestationId",
    "entryDid",
    "issuerDid",
    "credential",
    "issuedAt",
    "acceptedAt"
  ],
  "title": "VerifiableAttestationRecord",
  "type": "object"
}