Evidence row 2201264

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://land-survey.x402tookit.com/elevation"
    ]
  ],
  "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": "Ground elevation in feet and meters at a US latitude and longitude from USGS 3DEP, with data-coverage check.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "lat": 39.7392,
              "lon": -104.9903
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T03:48:08.427Z",
              "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.",
              "elevationFeet": 5237.7,
              "elevationMeters": 1596.45,
              "lat": 39.7392,
              "lon": -104.9903,
              "notChecked": [
                "buildings and trees (bare-earth model)",
                "survey-grade accuracy (use a licensed surveyor)"
              ],
              "reasons": [
                "Elevation from the USGS 3DEP bare-earth model (about 1 to 10 m resolution)."
              ],
              "source": "USGS 3DEP Elevation Point Query Service",
              "sourceUrl": "https://epqs.nationalmap.gov",
              "summary": "39.7392, -104.9903: 5237.7 ft (1596.4 m) above sea level.",
              "verdict": "ELEVATION_FOUND"
            },
            "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, e.g. 39.7392",
                      "type": "number"
                    },
                    "lon": {
                      "description": "Longitude, e.g. -104.9903",
                      "type": "number"
                    }
                  },
                  "required": [
                    "lat",
                    "lon"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "elevationFeet": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "elevationMeters": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "lat": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "lon": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceUrl": {
                      "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": "2026-11-02T04:07:02.134Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-02T04:07:01.899Z"
    },
    "resource": "https://land-survey.x402tookit.com/elevation",
    "serviceName": "Land Survey Screening",
    "tags": [
      "elevation",
      "usgs",
      "gis"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ground elevation in feet and meters at a US latitude and longitude from USGS 3DEP, with data-coverage check."
}

What the leaf hashes

{"body":"7ffa467361743db16d27ad35d79493a46af43cbf6779316e99608067971cd63d","id":2201264,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646803104711,"prev":null,"subject":"x402_bazaar:https://land-survey.x402tookit.com/elevation","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. 0x80633145dc8f709428deb5710670076b27b27c864e52cb1d353cf53c54ffffe0
2. 0x31654b27674f9a4872d1f69372d4962c10de2a4bb937853ce6680db1d74f5f10
3. 0x497587c531520b14b4810e1fd0f498ac1d24d3eade12ca2df454d1760c6acf5b
4. 0x17a6ac515f74b5272b3d270e8e1960ebbd4707f14c13b2e3b1260b28f57a2f92
5. 0xd713576eafd9898196f8ac597a766438c4e8939ff2ee5a6ba580272f7c5a714f
6. 0x855f9a06bbc11b51806c266bd1c9d322e23b572d6abbe8c137be266ad32426f6
7. 0xe9a2812cde37dc8db2132df5e81c7d23dae97330a103b4ee9effd880c24744bc
8. 0xe89bee49bbed2e354e6931ed13c6bfedc1adda080a97db515475e96a9dd6d168
9. 0x87e38dd9d4ae2d8e3538446289afb5491f7c3b4bdeb27e7fe67ee3b75cc58ba4
10. 0x9c4b3e60a387df4b0791966aaacf82efaf67b66edd67fd05d46d1322d4040579
11. 0xa393a68b746e025d8daf0e0981f2bc113caa7b5c6efc416b4f3c74cc574d5369
12. 0x71305c272656503414016b5f13ff8cba828a7f92b6aa86f744081781398d24d1
13. 0x6a06852e71057f53bcc6c658511dcfcda03ac93f8dd86e79a4db42c8e85677b9
14. 0x5d40473873ebe898bcca4e49df524bf4345695f06abe3579f4bdb7b306b863f8
15. 0x46991481c678139203ebc3c532867ce1643c09ddc33966c4fb48bb7f033ab22f
16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af