{
  "kcc": 23,
  "format_version": 1,
  "codec_prefix_hex": "00",
  "byte_string_format": "All byte strings and hashes are lowercase hexadecimal without a 0x prefix; values are sompi.",
  "scope": "Synthetic commitment fixtures with placeholder outpoints and scripts; no assertion of transaction acceptance or script validation.",
  "hashing_reference": {
    "repository": "kaspanet/rusty-kaspa",
    "commit": "cfafeb4c093fa37a303f1b9f19c58f986b870ce3",
    "paths": [
      "consensus/core/src/hashing/tx.rs",
      "consensus/core/src/hashing/covenant_id.rs",
      "crypto/hashes/src/hashers.rs"
    ]
  },
  "binding": {
    "metadata_text": "{\"name\":\"Example Token\",\"symbol\":\"EXT\",\"decimals\":8}",
    "preparation_transaction": {
      "version": 1,
      "inputs": [
        {
          "previous_outpoint": {
            "transaction_id": "1111111111111111111111111111111111111111111111111111111111111111",
            "index": 0
          },
          "signature_script_hex": "",
          "sequence": 0,
          "compute_budget": 0
        }
      ],
      "outputs": [
        {
          "value": 100000000,
          "script_public_key": {
            "version": 0,
            "script_hex": "51"
          },
          "covenant": null
        }
      ],
      "lock_time": 0,
      "subnetwork_id_hex": "0000000000000000000000000000000000000000",
      "gas": 0,
      "payload_hex": "007b226e616d65223a224578616d706c6520546f6b656e222c2273796d626f6c223a22455854222c22646563696d616c73223a387d",
      "storage_mass": 0
    },
    "genesis_transaction": {
      "version": 1,
      "inputs": [
        {
          "previous_outpoint": {
            "transaction_id": "206a0c31dbe45384b86de451a177fd7c8e986d278f2a86724d941937443113ef",
            "index": 0
          },
          "signature_script_hex": "",
          "sequence": 0,
          "compute_budget": 0
        }
      ],
      "outputs": [
        {
          "value": 90000000,
          "script_public_key": {
            "version": 0,
            "script_hex": "51"
          },
          "covenant": {
            "authorizing_input": 0,
            "covenant_id": "c86366cec738e9a1578b2d871ee493dcaabfd79156810f13f3b62429859e394e"
          }
        }
      ],
      "lock_time": 0,
      "subnetwork_id_hex": "0000000000000000000000000000000000000000",
      "gas": 0,
      "payload_hex": "",
      "storage_mass": 0
    },
    "genesis_output_indices": [
      0
    ],
    "expected": {
      "payload_digest": "4c7a2edf5dfb9dfbc9e3750b13d533fb3125a093a5a864949ae53391825bf688",
      "rest_preimage_hex": "0100010000000000000011111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000010000000000000000e1f505000000000000010000000000000051000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
      "rest_digest": "196a855c4194a345fae0186d835d6ac831fd6134c7c1a29b8c8b052251c81a07",
      "preparation_transaction_id": "206a0c31dbe45384b86de451a177fd7c8e986d278f2a86724d941937443113ef",
      "covenant_id": "c86366cec738e9a1578b2d871ee493dcaabfd79156810f13f3b62429859e394e"
    },
    "valid": true
  },
  "binding_mutations": [
    {
      "name": "changed_metadata",
      "replace": {
        "/preparation_transaction/payload_hex": "007b226e616d65223a224578616d706c6520546f6b656e222c2273796d626f6c223a22455854222c22646563696d616c73223a397d"
      },
      "expected_preparation_transaction_id": "6daf4b45cfd03b350c7da25ba9d11b7a2526151fdd86d810ebc75e251878e50f",
      "valid": false,
      "reason": "The recomputed preparation transaction ID does not match the outpoint spent at genesis."
    },
    {
      "name": "version_0",
      "replace": {
        "/preparation_transaction/version": 0
      },
      "valid": false,
      "reason": "The preparation transaction is not version 1."
    }
  ],
  "mutation_rule": "Each mutation starts from binding and replaces the indicated fields. Paths are relative to binding; the genesis transaction and expected covenant ID remain unchanged.",
  "declarations": [
    {
      "name": "empty_object",
      "payload_hex": "007b7d",
      "valid": true
    },
    {
      "name": "utf8_string",
      "payload_hex": "007b226e616d65223a22c3a9227d",
      "valid": true
    },
    {
      "name": "missing_codec_prefix",
      "payload_hex": "7b7d",
      "valid": false
    },
    {
      "name": "unknown_codec",
      "payload_hex": "017b7d",
      "valid": false
    },
    {
      "name": "non_object",
      "payload_hex": "005b5d",
      "valid": false
    },
    {
      "name": "invalid_utf8",
      "payload_hex": "007b2278223a22ff227d",
      "valid": false
    }
  ]
}