{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "receipt_id": {
      "type": "string",
      "minLength": 1
    },
    "proposal_digest": {
      "type": "string",
      "pattern": "^[0-9a-f]{64}$"
    },
    "permit_id": {
      "type": "string",
      "minLength": 1
    },
    "channel": {
      "type": "string",
      "enum": [
        "FILE_EXPORT",
        "TRADING_PLATFORM_API",
        "SIMULATION_GATEWAY"
      ]
    },
    "idempotency_key": {
      "type": "string",
      "minLength": 1
    },
    "artifact_ref": {
      "type": "string",
      "minLength": 1
    },
    "accepted_at": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z))$"
    }
  },
  "required": [
    "receipt_id",
    "proposal_digest",
    "permit_id",
    "channel",
    "idempotency_key",
    "artifact_ref",
    "accepted_at"
  ],
  "additionalProperties": false,
  "$id": "https://vpp-ai-platform/contracts/execution_receipt.json",
  "title": "ExecutionReceipt"
}