Evidence row 2201797

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://geo-calc.x402tookit.com/geohash-encode"
    ]
  ],
  "name": "Geo Calc",
  "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": "Encode latitude/longitude as a geohash (1 to 12 characters) with the cell bounds, center and size in meters.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "lat": 57.64911,
              "lon": 10.40744,
              "precision": 11
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:41:06.762Z",
              "bounds": {
                "east": 10.407440364,
                "north": 57.649111301,
                "south": 57.64910996,
                "west": 10.407439023
              },
              "cellHeightM": 0.149,
              "cellWidthM": 0.08,
              "centerLat": 57.64911063,
              "centerLon": 10.407439694,
              "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.",
              "geohash": "u4pruydqqvj",
              "latErrorDeg": 6.71e-7,
              "lonErrorDeg": 6.71e-7,
              "notChecked": [
                "whether the point is on land or at a real address",
                "neighbouring cells (see /geohash-neighbors)",
                "…1 more"
              ],
              "precision": 11,
              "reasons": [
                "Bits alternate longitude, latitude, starting with longitude; 5 bits per base-32 character."
              ],
              "source": "Geohash algorithm (G. Niemeyer, public domain), computed locally",
              "summary": "(57.64911, 10.40744) is geohash u4pruydqqvj (11 characters), a cell about 0.1 m tall and 0.1 m wide.",
              "verdict": "ENCODED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "lat": {
                      "description": "Latitude in degrees, -90 to 90",
                      "type": "number"
                    },
                    "lon": {
                      "description": "Longitude in degrees, -180 to 180",
                      "type": "number"
                    },
                    "precision": {
                      "description": "Characters, 1 to 12 (default 9)",
                      "type": "integer"
                    }
                  },
                  "required": [
                    "lat",
                    "lon"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "bounds": {
                      "properties": {
                        "east": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "north": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "south": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "west": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "cellHeightM": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "cellWidthM": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "centerLat": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "centerLon": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "geohash": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "latErrorDeg": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "lonErrorDeg": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "precision": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:25:20.006Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:25:19.818Z"
    },
    "resource": "https://geo-calc.x402tookit.com/geohash-encode",
    "serviceName": "Geo Calc",
    "tags": [
      "geohash",
      "geocoding",
      "coordinates"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Encode latitude/longitude as a geohash (1 to 12 characters) with the cell bounds, center and size in meters."
}

What the leaf hashes

{"body":"21d2f16b85b5c41c83d3831324cdea2ae9b89ea13c09ce80dc4c96b47f1281ba","id":2201797,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808937481,"prev":null,"subject":"x402_bazaar:https://geo-calc.x402tookit.com/geohash-encode","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. 0xb9c4864aa43213c1472e1bf4974ae7b2019f42f9086699e845d9bb98c0ee2e20
2. 0x5096e80c22d726ca0add905297a072f307892ee90ff6f6b822c90654ed09caa6
3. 0xb2b719bc795272ca589d226e0fec9e2af7791721c18632384391e91c2725c8f4
4. 0x3c11cda7804db2dc13cd398fe257c3bc1bf13cde29670237b17ac3571361b752
5. 0x824362728c6388004b0651d19814cb00eee4aae5a1e67c5844d24276b6038262
6. 0x07abaab0d2b6af446459ffd6494c0c902237ab4dadbb4e82f7c8a16bedd0db7a
7. 0xa8cb763a5215928cc52693755d86c3d5d25139216c9efad0192ac9b17cba99f8
8. 0xdc4c835abf95423b755238cef817db54a98c71e2350ac3d013f43df0fbd76c55
9. 0x2133668b093558d00a6e37d04a17316fb7878f04b3e3f4e7a4935e2ce1175b43
10. 0x016290e2ee9f3ae8e7e480cedcbafcf605870f8527e7976a4f0a41d309f81562
11. 0x8797aba4571523cb0cc890107021940e5990189306884b40df55cf25f8d4f0ca
12. 0x963d651d919bdd696be66242b0ee6514bbe3c46940834688ade9fad9027b0b2b
13. 0x080572f8942a728701d6e4c74c76b04c122aa149d1dbdef56feb8ce007a745b1
14. 0xc1d961be09ff84253ce4ecf4b141b3c25631ce9eb1cc0a3197e5d83d03240ee4
15. 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af