Evidence row 117305

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://music.openverbs.com/v1/note"
    ]
  ],
  "name": "Note parse",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Parse a note in scientific pitch notation (e.g. \"A4\", \"C#5\", \"Bb3\") into its letter, accidental, pitch class (0..11), octave, MIDI number and frequency in Hz (A4 = 440 Hz).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "note": "C4"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "note": {
                      "description": "e.g. \"A4\", \"C#5\", \"Bb3\".",
                      "maxLength": 8,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "note"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:12:22.344Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:12:22.192Z"
    },
    "resource": "https://music.openverbs.com/v1/note",
    "serviceName": "Note parse",
    "tags": [
      "parse musical note",
      "note frequency lookup",
      "midi note converter",
      "scientific pitch notation",
      "musical note api"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Parse a note in scientific pitch notation (e.g. \"A4\", \"C#5\", \"Bb3\") into its letter, accidental, pitch class (0..11), octave, MIDI number and frequency in Hz (A4 = 440 Hz)."
}

What the leaf hashes

{"body":"4d4ca6fc7a8613054cd3a96d685d6120e9bd11f4732a7c0e5362035338fb6a02","id":117305,"kind":"listing","method":"baseline/1","observed_us":1793025610982266,"prev":null,"subject":"x402_bazaar:https://music.openverbs.com/v1/note","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. 0x603fc7fc53742c47eaf7e872e8cc4aa838fe7c5dee7c37f2e4c9593c2f6c6b7b
2. 0xa93e7927ac28fc74503d3911def7c7c79b2786529f8cad87c83b61530dcea065
3. 0xfac8e14ba67d8237127d748dd4af4e0e19657308265a41d980e35737228cc3f4
4. 0xb26127bcea61b8eadca6c9d164e3697ab4e6033f8cf5c266ec71e0c58d212d4a
5. 0xf08d235d70f45d53cea8f8998df44db620bd069fcde58a0043a8fe395ac9b706
6. 0xf8748dccd279802c5f74e9e59875114c04fbd61def1b956254a6c3eed5310886
7. 0xbefa8bc8e786fd116c9cf9862dab1753bf5e4775406c9ed70f32bc74cc2c2c8e
8. 0x63839ec1c6d2157e11090343102dac7f2f5ebe935870a6b597cfff693e20f718
9. 0xac936935e59643d4e57abb3bdcf6fb37bcd1763485f00fbb4d033b9fac75bd5a
10. 0xbc2e807bf00b2ed1c806b85b0cbba8abd3b9788e0e8000d164ef64dfc99a3dcb
11. 0xa50fca837a4f035829bddff38d023aff0ec4482f9bb5df60ea5b321b01e3e922
12. 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae