Evidence row 2201803

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://geo-calc.x402tookit.com/geodesic-direct"
    ]
  ],
  "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": "Destination latitude/longitude and final bearing from a start point, initial bearing and distance (WGS84, Vincenty).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "bearing": 273.5,
              "distanceM": 3000000,
              "lat": 40.6413,
              "lon": -73.7781
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:41:05.973Z",
              "degraded": false,
              "destinationLat": 36.980597588,
              "destinationLon": -108.224850786,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "ellipsoid": "WGS84",
              "finalBearingDeg": 251.497076,
              "notChecked": [
                "terrain, obstacles or water",
                "the path is the geodesic: a constant compass heading (rhumb line) would end somewhere else",
                "…1 more"
              ],
              "reasons": [
                "A spherical calculation (R = 6371008.8 m) ends 7245.1 m away from the ellipsoidal answer."
              ],
              "source": "Vincenty (1975) direct formula on WGS84, computed locally",
              "sphericalDestinationLat": 36.974004359,
              "sphericalDestinationLon": -108.305992255,
              "sphericalOffsetM": 7245.054,
              "summary": "Going 3000 km from (40.6413, -73.7781) on bearing 273.5 degrees ends at (36.9805976, -108.2248508), arriving on bearing 251.497.",
              "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": {
                    "bearing": {
                      "description": "Initial bearing in degrees clockwise from north, 0 to 360",
                      "type": "number"
                    },
                    "distanceM": {
                      "description": "Distance in meters, 0 to 20,000,000",
                      "type": "number"
                    },
                    "lat": {
                      "description": "Start latitude",
                      "type": "number"
                    },
                    "lon": {
                      "description": "Start longitude",
                      "type": "number"
                    }
                  },
                  "required": [
                    "lat",
                    "lon",
                    "bearing",
                    "distanceM"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "destinationLat": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "destinationLon": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "ellipsoid": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "finalBearingDeg": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sphericalDestinationLat": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "sphericalDestinationLon": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "sphericalOffsetM": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:25:11.457Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:25:11.175Z"
    },
    "resource": "https://geo-calc.x402tookit.com/geodesic-direct",
    "serviceName": "Geo Calc",
    "tags": [
      "geodesy",
      "destination",
      "bearing",
      "vincenty"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Destination latitude/longitude and final bearing from a start point, initial bearing and distance (WGS84, Vincenty)."
}

What the leaf hashes

{"body":"4e9d15dbfaeba2321f49648d6d74cb0d581ca9856ea48a319389cfe2daf12e03","id":2201803,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808958084,"prev":null,"subject":"x402_bazaar:https://geo-calc.x402tookit.com/geodesic-direct","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. 0x719ea10ccf361c5d3d911cb83331c2ab87bb62996ae413c4b9234bace2ee8c3e
2. 0x4b09969b241fafbfef4d6914772fe53d0903e834f2b99f49dbeec0a03b21c73a
3. 0x7d44455b2494131c2b878f7b8487ebd56a61978bc2161f45215b1e3dab98d8a9
4. 0x93ecfdd833f0d3f2b03c27ec646d54b639c0870204a694fb7b6683b11bf11c32
5. 0xabe42d8fc5aeb52b4f5129849858a8c9244833ca5f6c3c157f2f15d0643ea606
6. 0x35136eb8b0e3afd4bd73d2c3c528ce5c4ea29c754f2feb972cbb7400ac342560
7. 0x4465dae3f774305c6ab545b58261432030a17109da07170a66f496c91f7174e0
8. 0xeaa66c24846cbec0f65bf3daab3cfc44344b461d1fd53306fea011379ccf593e
9. 0x0c9736db1192831535dc56ed0bc0c6fa61f19f242966e3869d87494135b32343
10. 0x9f9e5d6365312972a9f4aee5d4599e967dc720d0dfcc4b8d17d84b679f5c4187
11. 0x31917d0425c459f6fcba03571c61c03e29ca20c742010778a232ea89ef84b1a1
12. 0x8b50ca6f83f92f047eee3f24720b579f3fc640c6f076688895cd4ff049787414
13. 0x5b336d18729d4068a892dd1e69a1bcd181b14c9ee7673f058f47ad6722014ff9
14. 0x05ad6b5d39c05b20c421cfd08a369494609a679562a35de106ddfc5164e8f853
15. 0x60dd7fd8117cbf3b80707f722623736c8c2b5b56277e8e78c9f81ef2dab8deab
16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af