Evidence row 72791

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://creator.halowerk.com/v1/plagiarism-music"
    ]
  ],
  "name": "HALOWERK creatorwerk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Converts caller-supplied MIDI-note sequences to adjacent pitch intervals, forms fixed-length interval n-gram sets and reports Jaccard overlap. It does not analyze rhythm, harmony, timbre, recordings, access to prior work or legal substantial similarity, and cannot determine plagiarism.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "bodyType": "json",
            "exampleUrl": "https://creator.halowerk.com/v1/plagiarism-music/schema#/requestExample",
            "method": "POST",
            "schemaUrl": "https://creator.halowerk.com/v1/plagiarism-music/schema#/inputSchema",
            "type": "http"
          },
          "output": {
            "example": {
              "candidate_unique_ngrams": 5,
              "interval_ngram_jaccard": 1,
              "method": "transposition-invariant pitch-interval n-gram Jaccard comparison",
              "reference_unique_ngrams": 5,
              "shared_interval_ngrams": [
                "-1,-2,-2",
                "-2,-1,-2",
                "2,2,3",
                "2,3,-2",
                "3,-2,-1"
              ],
              "transposition_invariant": true,
              "warning": "musical_feature_similarity_only_not_a_plagiarism_or_legal_determination"
            },
            "exampleUrl": "https://creator.halowerk.com/v1/plagiarism-music/schema#/outputExample",
            "schemaUrl": "https://creator.halowerk.com/v1/plagiarism-music/schema#/outputSchema",
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": true,
          "properties": {
            "input": {
              "additionalProperties": true,
              "properties": {
                "bodyType": {
                  "const": "json"
                },
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "method": {
                  "const": "POST"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType"
              ],
              "type": "object"
            },
            "output": {
              "additionalProperties": true,
              "properties": {
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T18:36:42.249Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T18:36:41.79Z"
    },
    "resource": "https://creator.halowerk.com/v1/plagiarism-music",
    "serviceName": "HALOWERK creatorwerk",
    "tags": [
      "iot",
      "music",
      "similarity"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Converts caller-supplied MIDI-note sequences to adjacent pitch intervals, forms fixed-length interval n-gram sets and reports Jaccard overlap. It does not analyze rhythm, harmony, timbre, recordings, access to prior work or legal substantial similarity, and cannot determine plagiarism."
}

What the leaf hashes

{"body":"5a4c5d96021799621e6bf7d0ddbcc238c1ead12214c461a460b98fcbcb32ede1","id":72791,"kind":"listing","method":"baseline/1","observed_us":1793025486491306,"prev":null,"subject":"x402_bazaar:https://creator.halowerk.com/v1/plagiarism-music","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x7c795e4ed10eb40783f4bb0e87441e658da2644cd87a52ec93f84af522654c80
2. 0x84e93ea5f7c7acf7a0b36d3e392782893f5c3ec6c295515c865a517bd799f4e6
3. 0x87ebb4820b1754b1cbe166e6e76c925b1fce15d32be94bc128c93ddc82bdf692
4. 0x9065ceb27236d09a620fc40e784b9dc10227e5f5615cf660c26ac3ebd07e7c3c
5. 0x73a469b3b73a283604af5805e9958c9e0bb318937528731f929627650b29beed
6. 0x96d193d8837993cbff382b3e9963ea650b4630a4b1dd946dab2db076983682ac
7. 0xb461c915801b2d912cb13f5ca9742cc043fccfd6dc265430c89ecc45d7e1faea
8. 0xdddeeb3f2c46650aa1f7e44d2e77a5a8be261a1f9cd78a02dc6d34e5b9ceb665
9. 0x61aee832c893156dbde012f675e5d5120e4a1a74802d845d9247f671077c5a46
10. 0x0c3432fd40f1f8418cebc1fc547110c754897d4ba829a0e95408b105a7ebe118
11. 0x2c4bc324cca0a9cf9acc1b58f29ce72853140e0ac2b1e69e9b827dfe71904616
12. 0x779c77295186b32da6387dfb36d3a76522e7d713472a7cebed7c93529ccc4be6
13. 0x0bffb634300aa5609bddaa79e8d31d7cde36c0a5a4465472f809b9f5287e40d2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae