← The evidence ledger
Evidence row 2202217
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://world-cities.x402tookit.com/city-lookup
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f080e7758ffe0ec7740f6482ec02edd5c942cb0b49fdcc3d89408386d3ffe117
- Leaf
- 0x3159f9f6d002054416157bf71851e26ab36cc3329d3650b91547d0fcb766d062
What was observed
{
"endpoints": [
[
"x402",
"https://world-cities.x402tookit.com/city-lookup"
]
],
"name": "World Cities",
"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 a world city by name and optional country; ranked by population with coordinates, time zone and elevation.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 3,
"name": "Paris"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T06:28:04.846Z",
"attribution": "City data: GeoNames (geonames.org), licensed CC BY 4.0, cities15000 snapshot 2026-10-21. Crowd-edited; populations and coordinates may be dated.",
"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.",
"matches": [
{
"admin1Code": "11",
"admin1Name": "Ile-de-France",
"asciiName": "Paris",
"country": "FR",
"countryName": "France",
"elevationM": 42,
"geonameId": 2988507,
"lat": 48.85341,
"lon": 2.3488,
"name": "Paris",
"population": 2138551,
"role": "national capital",
"timezone": "Europe/Paris"
},
{
"admin1Code": "TX",
"admin1Name": "Texas",
"asciiName": "Paris",
"country": "US",
"countryName": "United States",
"elevationM": 183,
"geonameId": 4717560,
"lat": 33.66094,
"lon": -95.55551,
"name": "Paris",
"population": 24782,
"role": null,
"timezone": "America/Chicago"
}
],
"notChecked": [
"places under about 15,000 people (unless a capital or administrative seat)",
"alternate and historic names",
"…1 more"
],
"query": {
"country": null,
"name": "Paris"
},
"reasons": [
"Several places share this name; they are ranked by population. Add a country to narrow it."
],
"source": "GeoNames cities15000 (CC BY 4.0)",
"summary": "Paris, Ile-de-France, France: population 2,138,551; 1 other place share this name.",
"totalMatches": 2,
"truncated": false,
"verdict": "FOUND_MULTIPLE"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"country": {
"description": "ISO 3166 code or country name, e.g. FR or France",
"type": "string"
},
"limit": {
"description": "Results 1 to 25 (default 5)",
"type": "integer"
},
"name": {
"description": "City name, e.g. Paris, Sao Paulo or Saint Petersburg",
"type": "string"
}
},
"required": [
"name"
],
"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"
]
},
"matches": {
"items": {
"properties": {
"admin1Code": {
"type": [
"null",
"string"
]
},
"admin1Name": {
"type": [
"null",
"string"
]
},
"asciiName": {
"type": [
"null",
"string"
]
},
"country": {
"type": [
"null",
"string"
]
},
"countryName": {
"type": [
"null",
"string"
]
},
"elevationM": {
"type": [
"null",
"number"
]
},
"geonameId": {
"type": [
"null",
"number"
]
},
"lat": {
"type": [
"null",
"number"
]
},
"lon": {
"type": [
"null",
"number"
]
},
"name": {
"type": [
"null",
"string"
]
},
"population": {
"type": [
"null",
"number"
]
},
"role": {
"type": [
"null",
"string"
]
},
"timezone": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"query": {
"properties": {
"country": {},
"name": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"totalMatches": {
"type": [
"null",
"number"
]
},
"truncated": {
"type": [
"boolean",
"null"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:38:19.92Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T22:38:19.752Z"
},
"resource": "https://world-cities.x402tookit.com/city-lookup",
"serviceName": "World Cities",
"tags": [
"cities",
"geonames",
"lookup",
"population"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Find a world city by name and optional country; ranked by population with coordinates, time zone and elevation."
}What the leaf hashes
{"body":"f080e7758ffe0ec7740f6482ec02edd5c942cb0b49fdcc3d89408386d3ffe117","id":2202217,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813798801,"prev":null,"subject":"x402_bazaar:https://world-cities.x402tookit.com/city-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).
- 0x3159e5f108cd7c5074dc5a216cc7e99c38a0132fd88ed7678f99bb9e5812fb87
- 0x7cac4d07538fc26c68e2d92baf8a1e4e73cc4349541f2903d6d67a4e5a3e2b2f
- 0x700c7fbbfe7b27b44b2d6836128ee6ff41afe43f22fb6f7888491b3388b9d8f0
- 0x83b3746a56b9298e9a02960c618e6303b3501a092b39176eb503f5f10c374486
- 0x747317c39f246ddde9a529c3a073bd27d0fdf11ea5c0cd5e6a00da0312c9ac17
- 0x370a8c0ac2e5b304dd99d56e8de9b515e9a626d2dfc8538f8dbe24915993940d
- 0xa7aa14597efdb99dcea056142bbaa6d8d56e0e6c1485ced602ae629dd70fb2d4
- 0x31736cfbf354caaa40b05fc3d692bbab70ecfc76d844c24cfe7d434e1528208d
- 0x62c6cf9ab673e6d3ebf17d3705d4c3bfc2eaae505575c1106770933d5eb6ea82
- 0xcadf711437668af0c0d3d34cbcc150727cc5d18f52d42d9fbf2d651a7b0a45b8
- 0x0112e4e45eb51898ecd3ae0b872fa6de4b24a668cedd767cc9c2c13657d3f5e2
- 0x0069da835f0bdf3fac9b4da76faf3526f6622cf9f1f1db78993c2c79276ac031
- 0xe0a95aa0d153f7a034b0dbeb91c5460c64c47c22ac037e0e8cfa69f4ff734b69
- 0x74cae95d275254a9c747b603bd40b5086c5725fd3e904782e6447e4647e8b049
- 0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
- 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
- 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af