← The evidence ledger
Evidence row 2202279
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://airlines-reference.x402tookit.com/airline-lookup
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 4e726ac41c8a5de87c155b6986e2e7a9c38de16545053aad4d097ccc24e199e8
- Leaf
- 0xaccfcd6d3adcce719e8a9ee0c34e39c3cbd037070de93f8e558bd1fc72fac163
What was observed
{
"endpoints": [
[
"x402",
"https://airlines-reference.x402tookit.com/airline-lookup"
]
],
"name": "Airlines Reference",
"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": "Find an airline by IATA (BA), ICAO (BAW) or name: callsign, country, active flag. 2017 snapshot incl. defunct airlines.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"q": "BA"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T05:48:59.904Z",
"attribution": "Airline data: OpenFlights.org, Open Database License 1.0 (attribution and share-alike), static snapshot dated 2017-02-02; includes defunct airlines; route data is old.",
"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.",
"input": "BA",
"matchedBy": "IATA code",
"matches": [
{
"active": true,
"alias": null,
"callsign": "SPEEDBIRD",
"country": "United Kingdom",
"iata": "BA",
"icao": "BAW",
"name": "British Airways",
"openflightsId": 1355,
"routesInSnapshot": 549
}
],
"notChecked": [
"whether the airline operates today: this is a 2017 snapshot and the active flag is as of then",
"airlines founded or renamed after the snapshot",
"…1 more"
],
"reasons": [
"Matched by IATA code.",
"Static snapshot from 2017-02-02: airlines that started, stopped or changed codes since are not reflected."
],
"snapshot": "Static snapshot from 2017-02-02: airlines that started, stopped or changed codes since are not reflected.",
"source": "OpenFlights airlines.dat and routes.dat 2017 snapshot (ODbL 1.0), computed locally",
"summary": "British Airways (IATA BA, ICAO BAW, callsign SPEEDBIRD), United Kingdom, active in the snapshot.",
"totalMatches": 1,
"verdict": "FOUND"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"q": {
"description": "IATA code (BA), ICAO code (BAW) or airline name (British Airways)",
"type": "string"
}
},
"required": [
"q"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"attribution": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"input": {
"type": [
"null",
"string"
]
},
"matchedBy": {
"type": [
"null",
"string"
]
},
"matches": {
"items": {
"properties": {
"active": {
"type": [
"boolean",
"null"
]
},
"alias": {},
"callsign": {
"type": [
"null",
"string"
]
},
"country": {
"type": [
"null",
"string"
]
},
"iata": {
"type": [
"null",
"string"
]
},
"icao": {
"type": [
"null",
"string"
]
},
"name": {
"type": [
"null",
"string"
]
},
"openflightsId": {
"type": [
"null",
"number"
]
},
"routesInSnapshot": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"snapshot": {
"type": [
"null",
"string"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"totalMatches": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:35:44.97Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T22:35:44.671Z"
},
"resource": "https://airlines-reference.x402tookit.com/airline-lookup",
"serviceName": "Airlines Reference",
"tags": [
"airlines",
"iata",
"icao",
"lookup"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Find an airline by IATA (BA), ICAO (BAW) or name: callsign, country, active flag. 2017 snapshot incl. defunct airlines."
}What the leaf hashes
{"body":"4e726ac41c8a5de87c155b6986e2e7a9c38de16545053aad4d097ccc24e199e8","id":2202279,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646814867657,"prev":null,"subject":"x402_bazaar:https://airlines-reference.x402tookit.com/airline-lookup","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).
- 0xaccf7ecd105e0d88d96cd0ebebdebf60fdd09a7ebacdcb9d4696c1de3e1d9133
- 0x5c59fbab4ade539fd980267a79b264ed43b5e0997cbc3f71c31e530212b809b2
- 0xe37e31a48e81fd901b95aaff3ecf528001776fc8ce29f9794c6bb7d38b5a3e3f
- 0xf0e89f094d5082e4f07287bbe0d20aa515ed6b52d3f883730db811eb0f520422
- 0xfe3114f11433c81b13d6ce5d25134019ae592d5ab5c9437361d7cfeb8733207e
- 0xda07c920d72d329ef6751ecab9173cf48b4f7179fb081363d452bd105d47f524
- 0x11e01310954c72599077ad6563f8bf71a612dcc2ed929a1b029f48566e8a23bb
- 0x4827ee1d01ea0fa6099893b9b3b11ea8b823821f0168537f6d4a6f7edf4a83f8
- 0xdec67f582e547bbf0dbf931f50d46b47e7cc5f193bdc94d82af02c106501c2c6
- 0x4c70ec0fb1392a7753630a2cb0b6008e4f889e6ea880dd6cb3847043b8aa08f9
- 0x2ccda8c18ff07f00c8bb027f9f15ae0c0d5b653ed69ac4ac66f46fa53a11ad61
- 0xba75ac8fae3b7769dc511d447c671590cf9f4572510e81111cdc037d6738de1d
- 0x30482ffd581ea067af14f15cf3c17e7dcb174f749e858ecded170a1f5f75cc59
- 0x27deeb1ef1692b4773e73c16b6d8d0cdf4251fe2660821e5336f57539770fd2f
- 0x793184605629cd36ba80a07cbe115ca35e8923297bf024260c6f5c06b255f638
- 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af