Evidence row 119382

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/aviation/metar"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:aviation-metar",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:aviation-metar",
          "reference": "CFrxhkszZi7CE6cowaVkP58GJrEzVMLu7YuDzvt5F5tE",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazphdmlhdGlvbi1tZXRhciIsInJlZmVyZW5jZSI6IkNGcnhoa3N6Wmk3Q0U2Y293YVZrUDU4R0pyRXpWTUx1N1l1RHp2dDVGNXRFIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIxNTM4MjU1Mzd9.3WDaBKaGUiD1Q_pKED181prX-c1tAsG94Px-3mE_ou0"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Airport METAR weather - decoded current conditions, flight category (VFR/IFR), wind, visibility, ceiling, altimeter and raw report for up to 5 ICAO airports",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "ids": "KJFK,KLAX"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "not_found": [],
              "observations": [
                {
                  "altimeter_hpa": 1010.9,
                  "altimeter_inhg": 29.85,
                  "ceiling_ft": 25000,
                  "clouds": [
                    {
                      "base_ft": 25000,
                      "cover": "BKN"
                    }
                  ],
                  "dewpoint_c": 13.3,
                  "elevation_m": 3,
                  "flight_category": "VFR",
                  "lat": 40.6392,
                  "lon": -73.7639,
                  "name": "New York/JF Kennedy Intl, NY, US",
                  "observed_at": "2026-10-12T23:51:00.000Z",
                  "raw": "METAR KJFK 122351Z 32009KT 10SM BKN250 19/13 A2985 RMK AO2 SLP109 T01940133 10233 20194 53019 $",
                  "relative_humidity_pct": 68,
                  "station": "KJFK",
                  "temp_c": 19.4,
                  "temp_f": 66.9,
                  "visibility_sm": 10,
                  "weather": null,
                  "wind": {
                    "direction_deg": 320,
                    "gust_kt": null,
                    "speed_kt": 9,
                    "variable": false
                  }
                }
              ],
              "source": "NOAA Aviation Weather Center"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "ids": {
                      "description": "1-5 ICAO airport codes separated by commas, e.g. KJFK,KLAX",
                      "type": "string"
                    }
                  },
                  "required": [
                    "ids"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "checked_at": {
                      "description": "Time the check was run (UTC)",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "count": {
                      "description": "Number of items returned",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "not_found": {
                      "description": "Inputs that matched nothing",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "observations": {
                      "description": "Observations in time order",
                      "items": {
                        "properties": {
                          "altimeter_hpa": {
                            "description": "Altimeter, in hectopascals"
                          },
                          "altimeter_inhg": {
                            "description": "Altimeter inhg",
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "ceiling_ft": {
                            "description": "Ceiling, in feet",
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "clouds": {},
                          "dewpoint_c": {
                            "description": "Dewpoint, in degrees Celsius"
                          },
                          "elevation_m": {
                            "description": "Elevation above sea level in metres"
                          },
                          "flight_category": {
                            "description": "Flight category",
                            "type": "string"
                          },
                          "lat": {
                            "description": "Latitude in decimal degrees"
                          },
                          "lon": {
                            "description": "Longitude in decimal degrees"
                          },
                          "name": {
                            "description": "Name"
                          },
                          "observed_at": {
                            "description": "Time of the observation (UTC)",
                            "type": "string"
                          },
                          "raw": {
                            "description": "Unscaled integer value as returned by the chain",
                            "type": "string"
                          },
                          "relative_humidity_pct": {
                            "description": "Relative humidity, as a percentage"
                          },
                          "station": {
                            "description": "Observation station",
                            "type": "string"
                          },
                          "temp_c": {
                            "description": "Temperature in degrees Celsius",
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "temp_f": {
                            "description": "Temp, in degrees Fahrenheit"
                          },
                          "visibility_sm": {
                            "description": "Visibility sm",
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "weather": {},
                          "wind": {
                            "type": "object"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "count",
                    "observations"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-16T12:28:25.574Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-16T12:28:25.271Z"
    },
    "resource": "https://saylorinnovations.com/api/aviation/metar",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "metar",
      "airport weather",
      "flight category",
      "aviation weather",
      "vfr ifr"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Airport METAR weather - decoded current conditions, flight category (VFR/IFR), wind, visibility, ceiling, altimeter and raw report for up to 5 ICAO airports"
}

What the leaf hashes

{"body":"463b9c29bd2c9bb25180f3c8a6463a956452072ab1b60d9316abe00061655501","id":119382,"kind":"listing","method":"baseline/1","observed_us":1793025615227690,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/aviation/metar","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x3a5888220dde90d22f3048aae4450fccc1ec830ae96bb008cce3edf35e1b826b
2. 0x0b6098e05f742f42f28449ba43794586f8cafcfdef7b9f4340067e111d9dcff0
3. 0xb32b32c174e814da1af13ee73d1ba974fa2a6f46a95d085ae8235f1ec0544b96
4. 0x815bd2b31c20b4246eb4053fc1df3809c7e486375dcbd796366529e3c38f888b
5. 0x4cc101b5be8223fcd02873ab8bb2677227c83109b31bfaddafce32a54d0c62aa
6. 0x96b4a078c542109776b2ecb454ca015fa6341fd0b4d0637977be0f8e4f529bc2
7. 0xd6156cad7eb57a441d1b3e0e1c733117e84c2aa42894edfe6c2266aa70058efa
8. 0x3ada6f431f950a0a6df4607c5c7c5b55960e6786f0747329f62f6cacefa7d42c
9. 0xee5641b3274e2e3e6711b6b9616f42c3f73f691667ec7d3fc9b759263b61a8fd
10. 0xdcc828e24b7442e8235bf18fc875c4401696d216b65ec037eb65cf2ef34782da
11. 0xd9b921e2251851de5c43bdbb4f58d5e2fa1aee215c84e0f3e0426cf1e4a08e8f
12. 0x18cc4431e4bbe45ee72defb9bb3318434364bf71c883055c6197fa7102ec601a
13. 0xe2214b3d6a48396930d1739b02ea366de2aac5337c9b9ff2aff28cecf6518139
14. 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae