Evidence row 2202226

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://aviation-weather.x402tookit.com/density-altitude"
    ]
  ],
  "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": "Density altitude at an airport from live temperature and pressure: performance penalty for aircraft and drones.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "icao": "KDEN"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "ageMinutes": 50,
              "altimeterHpa": 1010.6,
              "asOf": "2026-10-11T03:43:16.282Z",
              "degraded": false,
              "densityAltitudeFt": 7419,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "fieldElevationFt": 5433,
              "icao": "KDEN",
              "isaTempC": 4.1,
              "notChecked": [
                "humidity (a small extra effect)",
                "the aircraft's own performance charts",
                "…1 more"
              ],
              "observed": "2026-10-11T02:53:00.000Z",
              "pressureAltitudeFt": 5510,
              "reasons": [
                "Thin air cuts engine power, propeller and rotor lift: longer take-off roll, lower climb rate, shorter drone endurance.",
                "Temperature 20°C against ISA 4.1°C at this pressure altitude."
              ],
              "source": "NWS Aviation Weather Center",
              "sourceUrl": "https://aviationweather.gov/data/api",
              "summary": "KDEN: field elevation 5433 ft, pressure altitude 5510 ft, density altitude 7419 ft (1986 ft above field elevation).",
              "tempC": 20,
              "thresholds": {
                "highFt": 5000,
                "veryHighFt": 8000
              },
              "verdict": "HIGH_DENSITY_ALTITUDE"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
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                      "type": "string"
                    }
                  },
                  "required": [
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                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
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                "example": {
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                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "altimeterHpa": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "densityAltitudeFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "fieldElevationFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "icao": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "isaTempC": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "observed": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "pressureAltitudeFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceUrl": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "tempC": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "thresholds": {
                      "properties": {
                        "highFt": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "veryHighFt": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:38:11.583Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:38:11.332Z"
    },
    "resource": "https://aviation-weather.x402tookit.com/density-altitude",
    "serviceName": "Aviation Weather",
    "tags": [
      "aviation",
      "density-altitude",
      "drone"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Density altitude at an airport from live temperature and pressure: performance penalty for aircraft and drones."
}

What the leaf hashes

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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. 0x9900584a43e8ba495ba27d670c526281bcac1a92bac92f2c38a7093ce432ea12
2. 0x420ae39367381999a407e81f86e5aa5f6454f9c154a834261922ce9c05096ed7
3. 0xb26e3bff23ddb87cc1756b699020a80011b37354ff845d328063f9090bc6a3ed
4. 0xa9a75c936ff45188cdeac9d43350d5b14ce91713b018d12b74d4a796724dc96d
5. 0x67c610d400ce4383aeccedb2c84d0454e4917cd786105a86335c13eff4acb8bc
6. 0xd02ae0cd4f9e9c88d281d99babc2041f3f222d65b7d0bc25eb37db1377604de9
7. 0xc04da57949c1352e99688ab8d5e57e99a1d75839cd0885af9facc296aeabf4e1
8. 0x2a0962cf26f77df1ca2486b8a739fe88a6c7a76c222d6b444f9684d84a1b60e0
9. 0xe22f57f44ac6cc9a491f0501149c7d559d3d740ca899a49baf4fd55da5f4accc
10. 0x3a46fdafece3a61d68088d3f88e5bcae3fd7b6fcaff363e1c7ca65ab037cd1b3
11. 0xada20304dc5c9d29d4031fc4dd73c6a31a9cd64251ee059e96eb643def837864
12. 0xd4030d277689929823c2ca835f5a68477c633a7ba2ef9073c95bd96efab62dca
13. 0x161ab8dfe29d5443837514b3760b34879b8201d43912571c314e4142639b07a3
14. 0xc5de092f33d9a5a2d3076d47423feb11b0630cdc080163babf6390bb04568ce5
15. 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
16. 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af