Evidence row 2201625

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://map-tiles.x402tookit.com/quadkey"
    ]
  ],
  "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": "Convert a tile x/y/z to a Bing Maps quadkey, or a quadkey back to x/y/z, with its parent and four children.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "x": 3,
              "y": 5,
              "zoom": 3
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T00:57:25.010Z",
              "children": [
                "2130",
                "2131",
                "…2 more"
              ],
              "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.",
              "notChecked": [
                "tile content availability",
                "the Bing Maps terms of use"
              ],
              "parent": "21",
              "quadkey": "213",
              "reasons": [
                "Each quadkey digit picks a quadrant: 0 top-left, 1 top-right, 2 bottom-left, 3 bottom-right."
              ],
              "source": "computed locally (Bing Maps Tile System)",
              "summary": "Quadkey 213 is tile 3/3/5.",
              "verdict": "CONVERTED",
              "x": 3,
              "y": 5,
              "zoom": 3
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "quadkey": {
                      "description": "A quadkey of digits 0 to 3, length 1 to 24 (to get x/y/z)",
                      "type": "string"
                    },
                    "x": {
                      "description": "Tile column",
                      "type": "integer"
                    },
                    "y": {
                      "description": "Tile row",
                      "type": "integer"
                    },
                    "zoom": {
                      "description": "Zoom level, with x and y, to get a quadkey",
                      "type": "integer"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "children": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "parent": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "quadkey": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "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": "2026-11-01T23:35:45.121Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:35:44.926Z"
    },
    "resource": "https://map-tiles.x402tookit.com/quadkey",
    "serviceName": "Map Tile Maths",
    "tags": [
      "quadkey",
      "bing-maps",
      "tiles",
      "hierarchy"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Convert a tile x/y/z to a Bing Maps quadkey, or a quadkey back to x/y/z, with its parent and four children."
}

What the leaf hashes

{"body":"4f4ab8c801880249f84adaef37779b0c574bc55c7a828ccf869e4db64276bc02","id":2201625,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806937966,"prev":null,"subject":"x402_bazaar:https://map-tiles.x402tookit.com/quadkey","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. 0xc40e9778844288b8bf97fc6cdbbd3d487c22d869102330fe4bc5e90c3cc6e6c9
2. 0x88b1a8f1e676a64c9ceae99a453e9f08dc7937a195350bbaf36f0eca5299b78b
3. 0xeab6f1c3a41d9d2170d556b0da5635a7dc4cca61e00f47d7f604d6221e1dc252
4. 0xee5d19a7612d65fe70495a8dbaded6b4f4f4b70418c523046efa2f699680e229
5. 0x1116ced64c1f4408a20d578fdf465698c5e5c7bd05fcdd8fbf469c56ef1039f5
6. 0x68dba0f476971d39cba7aef4cdae02cb8ed19888ef821a50a16c5a4d0239f2f3
7. 0x333543ed85999c1ed0611194a5ea877967e32c423426d83fd6eac734cb6409ff
8. 0xac4cb995e0649bd5e827a749d2c4afe444c1008dc46f52891eba215eb39f12ac
9. 0xe2808ddcdebdbc187ed9d6bc9d6014acfdccb8b5de7968e8ce941d9dbf494479
10. 0x28a538e50eb01f299f8bff933f4e0a459a8a2361ef9a815ba0e57478388e8e82
11. 0x6c721ad6d4bdfbed1536a71cbae39160ab188c4ecc438306357e9d6779174ad2
12. 0xe48e5215fb157d5670abc594c0a51b4c0fb5dc5d14ae1acb3119d3200fb933b5
13. 0x61ee210f299fdcda2ea75817592c9621ccbd35e0e4358cb705a10dd284df07af
14. 0x0b45a0435ea40bcbc48c2b318e8c62aa48a7e6b10e52b4548ada394225a7bd9f
15. 0xcbfaf790331071a9b3499a4db6f9d951fe5d04baefda2c66846b52b023ab8ae5
16. 0x37d31d28d0bd3743650d57e9fbf999efa4592cac831267f83aa125335b35a16b
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af