← The evidence ledger
Evidence row 2202210
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://aviation-weather.x402tookit.com/taf
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 06289a17dd9f65dc06a51527a86e20a998637b647600a980a91b2949bf68cfe4
- Leaf
- 0xa40e69b49502723d16fd5e6fa8ad7e45f267ad11db57350f5256d44a46934ec3
What was observed
{
"endpoints": [
[
"x402",
"https://aviation-weather.x402tookit.com/taf"
]
],
"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": "Airport forecast (TAF) summarized: worst flight category in the next 6-24 hours, when it starts, and the periods.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"hours": 24,
"icao": "KJFK"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T03:43:18.042Z",
"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.",
"firstPeriodCategory": "VFR",
"icao": "KJFK",
"issued": "2026-10-11T02:37:00.000Z",
"lookAheadHours": 24,
"notChecked": [
"amendments after issuance",
"other airports",
"…2 more"
],
"periods": [
{
"category": "VFR",
"ceilingFt": 20000,
"change": "initial",
"from": "2026-10-11T03:43:18.042Z",
"gustKt": null,
"probability": null,
"to": "2026-10-11T11:00:00.000Z",
"visibilityMi": 6,
"weather": null,
"windKt": 5
},
{
"category": "VFR",
"ceilingFt": 3500,
"change": "FM",
"from": "2026-10-11T11:00:00.000Z",
"gustKt": null,
"probability": null,
"to": "2026-10-11T14:00:00.000Z",
"visibilityMi": 6,
"weather": "-SHRA",
"windKt": 12
}
],
"rawTaf": "TAF KJFK 110237Z 1103/1206 09005KT P6SM SCT150 BKN200 FM111100 10012KT P6SM -SHRA BKN035 FM111400 10015G22KT P6SM -RA OVC020 FM111700 09016G27KT 4SM RA BR OVC015 FM112000 09018G30KT 1SM RA BR OVC008 F…",
"reasons": [
"Categories are recomputed from forecast ceiling and visibility, not copied from the bulletin.",
"PROB and TEMPO periods are included as forecast; they may not occur."
],
"source": "NWS Aviation Weather Center",
"sourceUrl": "https://aviationweather.gov/data/api",
"summary": "KJFK: now VFR; worst in the next 24h is LIFR starting 03:00Z.",
"verdict": "DETERIORATING_TO_LIFR",
"worstCategory": "LIFR"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"hours": {
"description": "Look-ahead hours, 3 to 30, default 12",
"type": "integer"
},
"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": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"firstPeriodCategory": {
"type": [
"null",
"string"
]
},
"icao": {
"type": [
"null",
"string"
]
},
"issued": {
"type": [
"null",
"string"
]
},
"lookAheadHours": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"periods": {
"items": {
"properties": {
"category": {
"type": [
"null",
"string"
]
},
"ceilingFt": {
"type": [
"null",
"number"
]
},
"change": {
"type": [
"null",
"string"
]
},
"from": {
"type": [
"null",
"string"
]
},
"gustKt": {
"type": [
"null",
"number"
]
},
"probability": {},
"to": {
"type": [
"null",
"string"
]
},
"visibilityMi": {
"type": [
"null",
"number"
]
},
"weather": {
"type": [
"null",
"string"
]
},
"windKt": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"rawTaf": {
"type": [
"null",
"string"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"worstCategory": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:38:27.092Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:38:26.889Z"
},
"resource": "https://aviation-weather.x402tookit.com/taf",
"serviceName": "Aviation Weather",
"tags": [
"aviation",
"taf",
"forecast"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Airport forecast (TAF) summarized: worst flight category in the next 6-24 hours, when it starts, and the periods."
}What the leaf hashes
{"body":"06289a17dd9f65dc06a51527a86e20a998637b647600a980a91b2949bf68cfe4","id":2202210,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813770607,"prev":null,"subject":"x402_bazaar:https://aviation-weather.x402tookit.com/taf","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xa40e90a4cf7ea1ea41d79ad90ba7dcf2cb5388d4849b874fae240358400dc7e0
- 0x06293bb470a5c2db936692c7c8c41fe966c9e961142dce4224396611a8270d2d
- 0xd7f5840930629fdb570b257322dd7476e230f7fcfd717b05ccd5a8826e9362ff
- 0xa32c9cdb8870f3a1c9941377b023e3153e9f2990d6b33905f7f95e142d5f3aa6
- 0x124aa035b9c367b6563fbb6ddce8a5cc21a7293c7f2549518708bc35a761343c
- 0xb1d74c67c86ad1b9fa46a0838c8c2f7941370b4834e56bb9540154eea8cd1f00
- 0xc0e0221797c06e851dbc8d1f8ea24f4efc2f6175355aa228a4571e5c587161bb
- 0x94818fa7fe64147a45c46a1010e37618979d2ed6cc4e5c46b609855b756d403b
- 0x68d728657d2b26a848a358266a31cfa2006520de31420998f653ac7f0f5becb8
- 0xc645b9915e41007d829c7a8b2940c49694404e8aaa1333beb77dcfeaed91da36
- 0x9e39e4a17bbc5a7a24664a766933eefa2b6aa75604754bf31c43b4ddf005e28a
- 0x3b9fa510ea9315fdb1f69663279e291312bab8c2c0d958c0da2bd30894c945a4
- 0x6959682af8334329ff865c5705b67dd969fc79c93745d2bb5b28573810cfc1f1
- 0x44d08992eb52b7db0b3504ba234d634742d61c21889da1eb00242ce07e97334b
- 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af