Evidence row 2201267

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://land-survey.x402tookit.com/distance-bearing"
    ]
  ],
  "name": "Land Survey Screening",
  "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": "Great-circle distance (miles, km, feet, nautical miles) and initial compass bearing between two latitude/longitude points.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "lat1": 40.6413,
              "lat2": 33.9416,
              "lon1": -73.7781,
              "lon2": -118.4085
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T03:48:04.513Z",
              "compass": "W",
              "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.",
              "feet": 13039179.2,
              "initialBearingDegrees": 273.84,
              "kilometers": 3974.342,
              "meters": 3974341.7,
              "miles": 2469.541,
              "nauticalMiles": 2145.973,
              "notChecked": [
                "terrain, roads or flight paths (straight line over a sphere)",
                "survey-grade accuracy (error up to about 0.5% from the spherical model)"
              ],
              "reasons": [
                "Great-circle distance on a spherical Earth (radius 6,371 km)."
              ],
              "reverseBearingDegrees": 65.87,
              "source": "computed locally",
              "summary": "2469.54 mi (3974.34 km), initial bearing 273.8° W.",
              "verdict": "COMPUTED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "lat1": {
                      "description": "Start latitude",
                      "type": "number"
                    },
                    "lat2": {
                      "description": "End latitude",
                      "type": "number"
                    },
                    "lon1": {
                      "description": "Start longitude",
                      "type": "number"
                    },
                    "lon2": {
                      "description": "End longitude",
                      "type": "number"
                    }
                  },
                  "required": [
                    "lat1",
                    "lon1",
                    "lat2",
                    "lon2"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "compass": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "feet": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "initialBearingDegrees": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "kilometers": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "meters": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "miles": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "nauticalMiles": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reverseBearingDegrees": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "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": "2026-11-02T04:06:56.61Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-02T04:06:56.396Z"
    },
    "resource": "https://land-survey.x402tookit.com/distance-bearing",
    "serviceName": "Land Survey Screening",
    "tags": [
      "geodesy",
      "distance",
      "bearing"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Great-circle distance (miles, km, feet, nautical miles) and initial compass bearing between two latitude/longitude points."
}

What the leaf hashes

{"body":"dffe0d70686d9355f3806a5022ab5e2c87d0392aa67ad56fd217b9b769071d4c","id":2201267,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646803114686,"prev":null,"subject":"x402_bazaar:https://land-survey.x402tookit.com/distance-bearing","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. 0x36f355d0b43aa34a47e2ea61b455dcf4b4e920eb69db86e45898938e16b17bbc
2. 0x3593a03da1fbd47a7bd001ad96813957a5076fe6a5927a25d86c32a89a1dde0f
3. 0xd910fdbb70768359dce220d22c8cec9a47e33b95a1e7a8e0f3225f201ca3b1f7
4. 0xbd15260dd2d927682359fd0624181229afb70539659226e10838418b1c8b1b18
5. 0x0afb5a348d56e8ce3236d8e4b2fb8535c9935ce91cbb359b99b50c237bd07670
6. 0x8e75d3762b7100d9b239c8af6ffe7862c92ab0009d712134280bdbb1d7210a93
7. 0xefb37b953b5ccc9e572123b58485d2f8d34d79557b7c83694ec1e77a17092e5b
8. 0x2a6300a3e24ea9eb64b368724978825088d832aa68ab0bd46c7ec8dcdd79a1cd
9. 0x537a4eef421d74b06858f4c15e495bc003bb274faedef836be067cb6ec20eca3
10. 0xd26fdbec107531c2d7cb929c8275b0ebf37bbe4afd0e54ca9aa08f96fbc7d5f6
11. 0xb13b84c12a02d0a8c81f9df5e2bee0e7fa42376f155b87a965b7c9d41b91da66
12. 0xf2afd692f9ecc84d8043fb7e2199fc37af44471368455fe6d2ad7651f20ae534
13. 0xa0e5887b42201f4bffeb4ff69bd41372cabcdfc84eaf669d71bc4550864cf581
14. 0xeda95b8bf6c7d0b27dc5b32d6a6006255f41e0f6bbe80842a49daa792f4de811
15. 0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
16. 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af