{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://meridianverity.com/verify/challenge/falsification-receipt.schema.json",
  "title": "MVG Falsification Receipt",
  "type": "object",
  "required": [
    "receipt_type",
    "challenge_fixture_id",
    "expected_verdict",
    "observed_verdict",
    "reason_code",
    "state_digest",
    "verifier_digest",
    "policy_version",
    "replay_handle",
    "generated_at",
    "tier"
  ],
  "properties": {
    "receipt_type": {
      "const": "mvg.falsification_receipt.v1"
    },
    "challenge_fixture_id": {
      "type": "string"
    },
    "expected_verdict": {
      "type": "string",
      "enum": [
        "PASS",
        "HOLD",
        "FAIL"
      ]
    },
    "observed_verdict": {
      "type": "string",
      "enum": [
        "PASS",
        "HOLD",
        "FAIL"
      ]
    },
    "reason_code": {
      "type": "string"
    },
    "dependency": {
      "type": "string"
    },
    "state_digest": {
      "type": "string"
    },
    "receipt_digest": {
      "type": "string"
    },
    "verifier_digest": {
      "type": "string"
    },
    "policy_version": {
      "type": "string"
    },
    "pointer_present": {
      "type": "boolean"
    },
    "signature_valid": {
      "type": "boolean"
    },
    "digest_match": {
      "type": "boolean"
    },
    "fresh_until": {
      "type": "string"
    },
    "witness_set": {
      "type": "object",
      "required": [
        "observed",
        "required"
      ],
      "properties": {
        "observed": {
          "type": "integer"
        },
        "required": {
          "type": "integer"
        }
      }
    },
    "transparency_refs": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "replay_handle": {
      "type": "string"
    },
    "generated_at": {
      "type": "string"
    },
    "tier": {
      "type": "string",
      "enum": [
        "public",
        "nda"
      ]
    },
    "note": {
      "type": "string"
    }
  }
}