Evidence row 2202222

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://aviation-weather.x402tookit.com/fog-risk"
    ]
  ],
  "name": "Aviation Weather",
  "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": "Fog and low-visibility risk at an airport from the temperature-dew point spread, wind and visibility.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "icao": "KSFO"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "ageMinutes": 47,
              "asOf": "2026-10-11T03:43:16.635Z",
              "degraded": false,
              "dewpointC": 8.9,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "icao": "KSFO",
              "notChecked": [
                "the temperature trend (falling temperatures raise risk)",
                "local terrain and water effects",
                "…1 more"
              ],
              "observed": "2026-10-11T02:56:00.000Z",
              "reasons": [
                "Fog forms when air cools to its dew point under light wind; a spread of 2°C or less with calm air is the classic setup.",
                "None reported at observation time."
              ],
              "source": "NWS Aviation Weather Center",
              "sourceUrl": "https://aviationweather.gov/data/api",
              "spreadC": 5.5,
              "summary": "KSFO: temperature 14.4°C, dew point 8.9°C (spread 5.5°C), wind 11 kt, visibility 10 mi: fog unlikely.",
              "tempC": 14.4,
              "thresholds": {
                "calmWindKt": 5,
                "likelySpreadC": 2,
                "possibleSpreadC": 3
              },
              "verdict": "FOG_UNLIKELY",
              "visibilityMi": 10,
              "weather": null,
              "windKt": 11
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "icao": {
                      "description": "4-letter ICAO airport code",
                      "type": "string"
                    }
                  },
                  "required": [
                    "icao"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "ageMinutes": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "dewpointC": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "icao": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "observed": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceUrl": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "spreadC": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "tempC": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "thresholds": {
                      "properties": {
                        "calmWindKt": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "likelySpreadC": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "possibleSpreadC": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "visibilityMi": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "weather": {},
                    "windKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:38:14.211Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:38:14.032Z"
    },
    "resource": "https://aviation-weather.x402tookit.com/fog-risk",
    "serviceName": "Aviation Weather",
    "tags": [
      "aviation",
      "fog",
      "visibility"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Fog and low-visibility risk at an airport from the temperature-dew point spread, wind and visibility."
}

What the leaf hashes

{"body":"8b4f5a6803bf4e8f2c4c7b770d55f17b1e170c412eda24338797f21db2a0de5f","id":2202222,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813868029,"prev":null,"subject":"x402_bazaar:https://aviation-weather.x402tookit.com/fog-risk","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. 0x2aa9e93a4e143b70da814d5fc76504e3d2eab4e03eb1d1233dd5e22e020fc358
2. 0x7bb01288d57bf06a84c6c71770e41227510cdae5eae1c83a860ccc0da5010e1e
3. 0xf591db6a86daf68145c266622ad31b046b13bd40a0fb9a86bc8c6a812f5698c4
4. 0x509fab52449b0495409d3a25270ed298bc8fcd9d2a1f93f2a3ec4c224b41cf0e
5. 0xb7b22af44fab35668c913bf19e4761522df253f9d68a1dae82451ac9bd01e6ab
6. 0xd090c71049641633256524f1a3c64c39107e23b7bd6259926f4ae66e3f778d41
7. 0x58a013590f76f0286e7eabf1f7d5c628b30e0c558b94e216917f0622b814b62a
8. 0x79e243b9e58e724c84d6990ca3a78dd4d090c93babd262be32531be3242372de
9. 0xfc25b0680c15d3e5acff0d3e601ad490dc7842f4e5b390e44978fa78308ee799
10. 0xffada546eccf320c780f0724100fea4161cefa3b5c4d96c06d23e6cd1eb3b76e
11. 0x0fdafcfa9880ccb6e718186681291d0603e78b43920ab8a5b544d30e2e46ee3b
12. 0xe190d3e775cf157368fa6ec6b0e77b39fa82005076265ca0fc15ff428080d4a8
13. 0xdb8f582c0e06dcc12f31eb42bfcf649e95cea3ce20a525db7917ecfd954357bb
14. 0x037a66c2ea899586d58b52761f6b950a97cda22bb80294e40013ebea171a684f
15. 0x9cb76be6423133397c3da69f801d6af35dcce77b458aa17bd796c877ed7bc8fd
16. 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af