Evidence row 2201622

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://map-tiles.x402tookit.com/tile-from-coord"
    ]
  ],
  "name": "Map Tile Maths",
  "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": "Slippy-map tile x/y/z containing a latitude and longitude, plus the pixel position inside the 256 px tile.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "latitude": 51.5074,
              "longitude": -0.1278,
              "zoom": 10
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T00:57:25.798Z",
              "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.",
              "fractionalX": 511.63648,
              "fractionalY": 340.506135,
              "notChecked": [
                "whether any tile server has imagery at that zoom",
                "tile server usage terms",
                "…1 more"
              ],
              "path": "10/511/340",
              "pixelX": 162,
              "pixelY": 129,
              "reasons": [
                "At zoom 10 the world is 1024 x 1024 tiles."
              ],
              "source": "computed locally (OSM slippy-map tile numbering)",
              "summary": "Tile 10/511/340 (z/x/y) at pixel 162, 129.",
              "tilesPerSide": 1024,
              "tmsY": 683,
              "verdict": "COMPUTED",
              "x": 511,
              "y": 340,
              "zoom": 10
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "latitude": {
                      "description": "Latitude in degrees, within +/-85.0511",
                      "type": "number"
                    },
                    "longitude": {
                      "description": "Longitude in degrees, -180 to 180",
                      "type": "number"
                    },
                    "zoom": {
                      "description": "Zoom level 0 to 24",
                      "type": "integer"
                    }
                  },
                  "required": [
                    "latitude",
                    "longitude",
                    "zoom"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "fractionalX": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "fractionalY": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "path": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "pixelX": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pixelY": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "tilesPerSide": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "tmsY": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "x": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "y": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "zoom": {
                      "type": [
                        "null",
                        "number"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:35:53.941Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:35:53.772Z"
    },
    "resource": "https://map-tiles.x402tookit.com/tile-from-coord",
    "serviceName": "Map Tile Maths",
    "tags": [
      "tiles",
      "slippy-map",
      "xyz",
      "mercator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Slippy-map tile x/y/z containing a latitude and longitude, plus the pixel position inside the 256 px tile."
}

What the leaf hashes

{"body":"b403a2f7751cb2fbd784b4709f94ed76029b259b033cfc6f7e2f9c153ef0809e","id":2201622,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806928234,"prev":null,"subject":"x402_bazaar:https://map-tiles.x402tookit.com/tile-from-coord","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. 0xdf74635bfe81deb4e6e8116c8fdce6c6abb112926400d78e26dd1b840d61370b
2. 0x0e6a14a2546a17f347bcc7945b42466f84a65fc46267ea1e33c372ba16d50063
3. 0x4ce642cb331f70299a0bfbfdd820f11c9d78875a3b465931db245b20bfe92d6b
4. 0x0da4afe819e2835d5c6c268137e71d18ff85ef7ce82a7706503b4fe657e89d21
5. 0x8d2d8bbb3091d200f995e7f610da989bc28ccc483c33366652c314f78d8fca23
6. 0xbc0db6724d1c45f1eaeabb727383cde829d58339f35a2aa8381f0a99fa26a14c
7. 0xf977a4a1f04fba35e3599d7426997d8d541b31e76fccdaecca5f401a948de9aa
8. 0x5ee08126675f59fdb1229afd81fab644092f7178151977cf825859e47eaff445
9. 0xb75d6bf6c781ef2e135dfe3531e15018671490b815eec91720eea57b11e5ffb3
10. 0x491abd4bfe7f5c07e433853d5568431a4f3236e450bd8229d0e32ecfc843ab76
11. 0x8c20e891723cace31e49e8f875c400daac3b5fb1cb54c5e723c3016ca76a554a
12. 0x658a03e3df61154a1a62d12a3aee91c196f7b3be59438a13e42a6796e2adca05
13. 0x1cd421f1e0b0be98fab8392181e25435047bd7c44fcbda07fa5cd27615d6b674
14. 0x5dd75981e1af83dc5ec1e2b8a2959012484cc3ea2e0defded2187a5a93ba7236
15. 0xa370e8e015a32408a8112e54e5f40a8a65e871bd52bbc6f25fbd1139f2ba5b11
16. 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af