Evidence row 2201900

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://file-formats.x402tookit.com/gif-header"
    ]
  ],
  "name": "File Format Inspector",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Read a GIF's version, width, height and global colour table size from its first 13 bytes.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "hex": "47494638396101000100800000ffffff00000021f904"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T23:43:21.243Z",
              "backgroundIndex": 0,
              "bytesExamined": 22,
              "colorResolutionBits": 1,
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "globalColorTable": true,
              "globalColors": 2,
              "height": 1,
              "notChecked": [
                "frame count or animation (frames come after the header)",
                "image data validity",
                "…1 more"
              ],
              "pixelAspectByte": 0,
              "pixelAspectRatio": null,
              "reasons": [],
              "sorted": false,
              "source": "computed locally (GIF89a specification)",
              "summary": "GIF89a, 1 x 1 px, 2 global colours.",
              "verdict": "VALID_HEADER",
              "version": "89a",
              "width": 1
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "hex": {
                      "description": "First 13 or more bytes of the GIF as hex (up to 512 bytes)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "hex"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "backgroundIndex": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "bytesExamined": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "colorResolutionBits": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "globalColorTable": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "globalColors": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "height": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pixelAspectByte": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pixelAspectRatio": {},
                    "reasons": {
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "sorted": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "version": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "width": {
                      "type": [
                        "null",
                        "number"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:54:05.463Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:54:05.205Z"
    },
    "resource": "https://file-formats.x402tookit.com/gif-header",
    "serviceName": "File Format Inspector",
    "tags": [
      "gif",
      "image",
      "dimensions",
      "header"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Read a GIF's version, width, height and global colour table size from its first 13 bytes."
}

What the leaf hashes

{"body":"c894b84d6794662de32f38dc646cec21ab3c703394f5c577a7ae0a5a5df3a46a","id":2201900,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646810113950,"prev":null,"subject":"x402_bazaar:https://file-formats.x402tookit.com/gif-header","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x9ae3bc3bf2e5dbcf98212fd3be77ac230ea0cc9477d3501dd3e632aca270df1b
2. 0x747367874b4c639cf540066f232b584cf7c9c8b61a618ed99fcac13afa42e304
3. 0x97d42dd47546bad526e4adfe0a8b9d99db8ad26f86083d7fb717355e9ca1a076
4. 0xfacb46f867a43ef1f35ee4e651b3250d023c8567cda127592c62d161c9a1ff6c
5. 0x93474f3fc13d4409e998f6f1527f10a599da34e0a0d9e171fbff88b23eef54c7
6. 0x777fa4fa2014e84bfc86f1e725863d807e8116278d58141d90e7d8ac0589e362
7. 0xca7365b990b741424b259d0a804d54bdd1a6919a9a9b38f2ee64c22c18a21993
8. 0xe9c82ed296d09f032c12d287f884d8efb42ad985c4e70f931754b9306f737806
9. 0x41f76047a4bedefafba3abadd2d9c2101530379fac38352e886b725f4de9f46e
10. 0xbb0a170f32756995c1e5f363753aae71db3439b90b05ca8116bee61f7b43c7df
11. 0xa44c4a36b8d86fa938e0f579106116effb29fcc0a86614f8c076cc4254c220f6
12. 0xbea97ef87badb4a269a9a806e24faae33a7711fec91ccdaba808349c0475fe9f
13. 0x96eeba0e0bb8dfa0ca66d907340b43514f88c7ff36bd9a1299bad5cc5219d2d0
14. 0xc5de092f33d9a5a2d3076d47423feb11b0630cdc080163babf6390bb04568ce5
15. 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
16. 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af