Evidence row 2201799

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://geo-calc.x402tookit.com/geohash-decode"
    ]
  ],
  "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": "Decode a geohash to its center latitude/longitude, bounding box and the plus-or-minus error in degrees.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "geohash": "ezs42"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:41:06.499Z",
              "bounds": {
                "east": -5.5810546875,
                "north": 42.626953125,
                "south": 42.5830078125,
                "west": -5.625
              },
              "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": "ezs42",
              "lat": 42.6049804688,
              "latErrorDeg": 0.02197265625,
              "lon": -5.6030273437,
              "lonErrorDeg": 0.02197265625,
              "notChecked": [
                "whether the cell contains anything of interest",
                "geohashes longer than 12 characters are refused"
              ],
              "precision": 5,
              "reasons": [
                "The center is the midpoint of the cell; the true point can be anywhere inside the bounds."
              ],
              "source": "Geohash algorithm (G. Niemeyer, public domain), computed locally",
              "summary": "Geohash ezs42 is centered at (42.60498047, -5.60302734), plus or minus 0.02197265625 degrees latitude and 0.02197265625 degrees longitude.",
              "valid": true,
              "verdict": "DECODED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "geohash": {
                      "description": "Geohash, 1 to 12 characters of 0-9 b-z (no a, i, l, o)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "geohash"
                  ],
                  "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"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "geohash": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "lat": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "latErrorDeg": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "lon": {
                      "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"
                      ]
                    },
                    "valid": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:25:17.695Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:25:17.423Z"
    },
    "resource": "https://geo-calc.x402tookit.com/geohash-decode",
    "serviceName": "Geo Calc",
    "tags": [
      "geohash",
      "geocoding",
      "coordinates"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Decode a geohash to its center latitude/longitude, bounding box and the plus-or-minus error in degrees."
}

What the leaf hashes

{"body":"542a88f71deb8f7c4467e24211c0c585b77127fb4501abaef286be38b94dc282","id":2201799,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808944030,"prev":null,"subject":"x402_bazaar:https://geo-calc.x402tookit.com/geohash-decode","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. 0x43abbf2ec341993601f174c0b93cb86a863f33130ae0342a9f1a2453a1ef0450
2. 0xa5571c32f868e4ea679144bb2303993cf83b657ad9545d5ea3d7dc198c73a23c
3. 0x3883ad078995f4aa8ff9dc140d4ba344a04e1cf8b43ba68df58899ff56da3ec8
4. 0x58c09b8b1fa130a13f7b07b3c1bed5ec9cee9dac23ef1b4ff4f0ac7ae8e416c6
5. 0xf3ed5d24dfbe139c754e3fb6d9d4ff953d4de03295db4b988614924c7bb1aa47
6. 0xbe760cc2bf0c55aae0aa4fb826c1cd1e2ad694c1820696c07f625af2491d1061
7. 0xf5820283c3f8d2bf82d6d540926a1bbc5d4e6dd3a5f07c811a553028ac486be3
8. 0x0ce3e285f5fd4290b47aa7e5c08cddfa75ce5f315ec272faff5a095ec288f525
9. 0x3d6434f6d42550c4019c8f10cff9f9f21f37a048d1b588566b05f56a35c047ee
10. 0x48a59c537776b2fb6931ce72070ddbec876cfb950ec28f97a0b2baa81f34a0dd
11. 0x519ad527ebf84c288d362a829c1ae01ad2766a39143c67eab6305064632ca01f
12. 0xe92478cc3eab4cc4c9e8fd5dbc3001cb0971587042ed8624c5712d5ceb777263
13. 0xd4651434698f4d5f8d2255b9d81f1cf47a7c3da7e2321b09b05fc8ddc31165a2
14. 0x75634d9d67fe6c75f98d15ecdced550aaaa0b303b51c1355fcc39f82416bc504
15. 0x3217f821997a6d778dcf0814a25b1296c55ab77710c675e7b15695d25a6ce67d
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af