← The evidence ledger
Evidence row 2202215
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://world-cities.x402tookit.com/city-search
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- aee96f4dcb7e20ab3b837710cac2b964789f021ec628ebdcfa4ba0d8ec391cab
- Leaf
- 0xa983e043acee3166def8b4e4f88d18500597e5810db79a42e46c366b152a243b
What was observed
{
"endpoints": [
[
"x402",
"https://world-cities.x402tookit.com/city-search"
]
],
"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": "Search world cities by name prefix, word or small misspelling; optional country and minimum population; capped at 50.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 5,
"q": "barcel"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T06:28:05.110Z",
"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": "56",
"admin1Name": "Catalonia",
"asciiName": "Barcelona",
"country": "ES",
"countryName": "Spain",
"elevationM": 15,
"geonameId": 3128760,
"lat": 41.38879,
"lon": 2.15899,
"matchScore": 80,
"name": "Barcelona",
"population": 1686208,
"role": "first-level administrative seat",
"timezone": "Europe/Madrid"
},
{
"admin1Code": "02",
"admin1Name": "Anzoategui",
"asciiName": "Barcelona",
"country": "VE",
"countryName": "Venezuela",
"elevationM": 3,
"geonameId": 3648559,
"lat": 10.1384,
"lon": -64.68769,
"matchScore": 80,
"name": "Barcelona",
"population": 815141,
"role": "first-level administrative seat",
"timezone": "America/Caracas"
}
],
"notChecked": [
"alternate-language names (only the primary and ASCII names are searched)",
"places under about 15,000 people",
"…1 more"
],
"query": {
"country": null,
"minPopulation": 0,
"q": "barcel"
},
"reasons": [
"Score: 100 exact, 80 prefix, 60 word prefix, 40 contains, 30 or 20 a near-miss spelling (1 or 2 edits)."
],
"source": "GeoNames cities15000 (CC BY 4.0)",
"summary": "7 name matches for \"barcel\"; best: Barcelona, ES.",
"totalMatches": 7,
"truncated": true,
"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": {
"country": {
"description": "ISO 3166 code or country name to restrict to",
"type": "string"
},
"fuzzy": {
"description": "true (default) adds near-miss spellings when few exact matches",
"type": "string"
},
"limit": {
"description": "Results 1 to 50 (default 10)",
"type": "integer"
},
"minPopulation": {
"description": "Only cities with at least this population (default 0)",
"type": "integer"
},
"q": {
"description": "Start of a name or a misspelling, e.g. Barcel or Lodnon",
"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"
]
},
"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"
]
},
"matchScore": {
"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": {},
"minPopulation": {
"type": [
"null",
"number"
]
},
"q": {
"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": "2026-11-01T22:38:20.922Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T22:38:20.773Z"
},
"resource": "https://world-cities.x402tookit.com/city-search",
"serviceName": "World Cities",
"tags": [
"cities",
"search",
"autocomplete",
"geonames"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Search world cities by name prefix, word or small misspelling; optional country and minimum population; capped at 50."
}What the leaf hashes
{"body":"aee96f4dcb7e20ab3b837710cac2b964789f021ec628ebdcfa4ba0d8ec391cab","id":2202215,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813790631,"prev":null,"subject":"x402_bazaar:https://world-cities.x402tookit.com/city-search","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).
- 0xa983f388f5c44ff2a4288ab6393e16eea029d17c3d47dbb76545b4bdfc97c477
- 0x8d0ba1cbab6d167d31ad86080afe2dfe54898a72e151e8ad1c7f52e52bd45904
- 0x7282fa8d2e6f9c71994853b0738c3f843d93f9acf72e53536f02624a0383a3f4
- 0x30258a0692da5fa8ec134e35934d88d55adad2eb9451134ddc2741f40458a128
- 0x55d512edb36357e744529100577a1a029aeef47d43ce462c42a38da4197515cd
- 0x08aae6c957be0900f73f4f260027808ee009a6e2232802135776638f383ad206
- 0xa6c5cf3ce9be0889dd8d2d5dfc44bf4233a04b62abcfa7a22439791a7f2b83ea
- 0x60c8471adb89e3988e608dc37c501d0e925d36ea2d297da3afddecbb08b0f7f1
- 0x1250fff0e6b61ced04558d966557278bd62ff9c00e36bf6ece0341cfb0884505
- 0x524ce42c523d8c6e1d1ec0174bba51f536c713eb3bfb864da6018180f5af8342
- 0x4d7cdfd8e8f99b330d5f369404d97728e338c5af683cc5165d22a06349000ca3
- 0xd092c4592746638c988be0201bef3aa0097a159b2bde204654e1174f70c7897c
- 0xf7fc51348087e5c1e3d386772d38113ebc053fa2bb0a5e6728e5f86d0ac25db5
- 0x7a6e52c5cebe3ec69d18cc200885d32108ba1be1b19f2da2ead8becbf3db3cb1
- 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af