Evidence row 2202235

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://aviation-calc.x402tookit.com/true-airspeed"
    ]
  ],
  "name": "Aviation Calculators",
  "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": "True airspeed, Mach and equivalent airspeed from calibrated airspeed, pressure altitude and outside air temperature.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "casKt": 150,
              "oatC": -5,
              "pressureAltitudeFt": 10000
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T14:44:09.099Z",
              "casKt": 150,
              "degraded": false,
              "densityRatio": 0.739,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "equivalentAirspeedKt": 149.57,
              "mach": 0.2727,
              "notChecked": [
                "indicated-to-calibrated correction: enter CAS, not raw IAS (the flight manual lists position error)",
                "ram-rise: at high speed the probe reads warmer than the static air, so enter the static temperature (total air temperature must be corrected)",
                "…2 more"
              ],
              "pressureAltitudeFt": 10000,
              "reasons": [
                "Calibrated airspeed is converted through the dynamic pressure it represents (isentropic flow, so compressibility is included), then TAS = Mach x speed of sound at the actual temperature.",
                "Actual temperature used for the speed of sound and density."
              ],
              "ruleOfThumbTasKt": 180,
              "source": "computed locally",
              "speedOfSoundKt": 638.1,
              "summary": "150 kt calibrated at 10000 ft and -5 C is 174 kt true airspeed (Mach 0.273); the 2%-per-1000-ft rule gives 180 kt.",
              "tasKt": 173.99,
              "tasMinusCasKt": 23.99,
              "temperatureC": -5,
              "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": {
                    "casKt": {
                      "description": "Calibrated airspeed in knots (indicated corrected for instrument and position error), 20 to 600",
                      "type": "number"
                    },
                    "oatC": {
                      "description": "Outside (static) air temperature in C; defaults to ISA at that altitude",
                      "type": "number"
                    },
                    "pressureAltitudeFt": {
                      "description": "Pressure altitude in feet, -1500 to 65000",
                      "type": "number"
                    }
                  },
                  "required": [
                    "casKt",
                    "pressureAltitudeFt"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "casKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "densityRatio": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "equivalentAirspeedKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "mach": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pressureAltitudeFt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "ruleOfThumbTasKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "speedOfSoundKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "tasKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "tasMinusCasKt": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "temperatureC": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:37:46.843Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:37:46.673Z"
    },
    "resource": "https://aviation-calc.x402tookit.com/true-airspeed",
    "serviceName": "Aviation Calculators",
    "tags": [
      "aviation",
      "true-airspeed",
      "mach",
      "e6b",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "True airspeed, Mach and equivalent airspeed from calibrated airspeed, pressure altitude and outside air temperature."
}

What the leaf hashes

{"body":"049ab0962942df9598f4be0d492e4f11e5fc4b17614763feb3bfa1eeb7c98dce","id":2202235,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646814157445,"prev":null,"subject":"x402_bazaar:https://aviation-calc.x402tookit.com/true-airspeed","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. 0xdba414fe9d1a05ed42bdea397a62148597ed755adfb5f69cb2e486db17562fc2
2. 0x74d2456d34616a05e4f9c3e983c2fe0ef0a96a91a2c569b9356cde2a23c6e7b1
3. 0x6f4b882ef3647674420576523b2f1aca9fcc2468e6c5318b0f4616b487fc752a
4. 0xba6214a734eb89009ac7ca6e0d526a18396afa3888aac5396f97b00576841c64
5. 0x494020f39211d33f3be4a7e83d7bacf79ca61f7556363ce3acef3b95e391dda9
6. 0xe25978b6ceee1654bbd158a06a0f72c9fd2d247a8b0e0a63a924edbad692af12
7. 0x7c5cfcd888a6fe7353426eb306122a6d7e79acd729248476c964b0c1c7f9b923
8. 0xb89eb3bce57ce67fd6467216bb4a973ae4afe3f78bd5f4092bf8b5fc265aa45a
9. 0x59f50c0c28b6f0d5e2cce516ca17fcd94eb7023fea013db0f8189edabaaaac6d
10. 0x7a496ad5caf365bb5f11fdc1424e19de5cce094b069518606496f0d7394ceb0c
11. 0x7875c12cd9501233f24e29a6f6cef2c2c51a4b14b4c1f113788bae170da71116
12. 0xdaed05bad2a1cdaa5f52d32d403aa69b5ad3e42c64c1772d4dd5905889bf2276
13. 0x4d734793ac74750cbdf1c30c6305a901fe0ac2ddf5819c226b382460e68290cd
14. 0xaed7c1080b4ff0b1fc4f851df0f2b8b4ef86b106015aa3aaf8da39a641c41a3d
15. 0xa370e8e015a32408a8112e54e5f40a8a65e871bd52bbc6f25fbd1139f2ba5b11
16. 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af