← The evidence ledger
Evidence row 2202214
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://world-cities.x402tookit.com/city-timezone
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ac5387ff5a9f75df8496b6a4a17af6686537a94c54b283492b528578b26869b7
- Leaf
- 0x9a6f67c9ceb331330014614dfba04b7f2d56ed93e961645cdceadba6f5503710
What was observed
{
"endpoints": [
[
"x402",
"https://world-cities.x402tookit.com/city-timezone"
]
],
"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": "Time zone id for a city with UTC offset at a moment, daylight saving flag, local time and next offset change.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"at": "2026-07-01T12:00:00Z",
"country": "US",
"name": "New York"
},
"type": "http"
},
"output": {
"example": {
"abbreviation": "EDT",
"asOf": "2026-10-21T06:28:05.377Z",
"atUtc": "2026-07-01T12:00:00Z",
"attribution": "City data: GeoNames (geonames.org), licensed CC BY 4.0, cities15000 snapshot 2026-10-21. Crowd-edited; populations and coordinates may be dated.",
"city": {
"admin1Code": "NY",
"admin1Name": "New York",
"asciiName": "New York City",
"country": "US",
"countryName": "United States",
"elevationM": 10,
"geonameId": 5128581,
"lat": 40.71427,
"lon": -74.00597,
"name": "New York City",
"population": 8804190,
"role": null,
"timezone": "America/New_York"
},
"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.",
"isDst": true,
"localTime": "2026-07-01 08:00",
"nextOffsetChange": {
"atUtc": "2026-11-01T06:00:00Z",
"fromUtcOffset": "-04:00",
"toUtcOffset": "-05:00"
},
"notChecked": [
"legal changes to a zone made after the runtime's tz database was built",
"cities that sit on a zone border (the zone is GeoNames' assignment for that point)",
"…1 more"
],
"reasons": [
"This zone has two offsets in 2026 (-05:00 in January, -04:00 in July); the lower is treated as standard."
],
"source": "GeoNames cities15000 (CC BY 4.0) + IANA tz data via Intl",
"standardUtcOffset": "-05:00",
"summary": "New York City, US: America/New_York, UTC-04:00 (daylight saving in effect); local time 2026-07-01 08:00.",
"timezone": "America/New_York",
"usedNow": false,
"usesDstThisYear": true,
"utcOffset": "-04:00",
"utcOffsetMinutes": -240,
"verdict": "COMPUTED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"at": {
"description": "ISO date or date-time for the offset (default: now), e.g. 2026-07-01T12:00:00Z",
"type": "string"
},
"country": {
"description": "ISO 3166 code or country name to disambiguate",
"type": "string"
},
"name": {
"description": "City name, e.g. Sydney",
"type": "string"
}
},
"required": [
"name"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"abbreviation": {
"type": [
"null",
"string"
]
},
"asOf": {
"type": [
"null",
"string"
]
},
"atUtc": {
"type": [
"null",
"string"
]
},
"attribution": {
"type": [
"null",
"string"
]
},
"city": {
"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": {},
"timezone": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"isDst": {
"type": [
"boolean",
"null"
]
},
"localTime": {
"type": [
"null",
"string"
]
},
"nextOffsetChange": {
"properties": {
"atUtc": {
"type": [
"null",
"string"
]
},
"fromUtcOffset": {
"type": [
"null",
"string"
]
},
"toUtcOffset": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"standardUtcOffset": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"timezone": {
"type": [
"null",
"string"
]
},
"usedNow": {
"type": [
"boolean",
"null"
]
},
"usesDstThisYear": {
"type": [
"boolean",
"null"
]
},
"utcOffset": {
"type": [
"null",
"string"
]
},
"utcOffsetMinutes": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:38:22.334Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T22:38:22.114Z"
},
"resource": "https://world-cities.x402tookit.com/city-timezone",
"serviceName": "World Cities",
"tags": [
"timezone",
"dst",
"utc-offset",
"cities"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Time zone id for a city with UTC offset at a moment, daylight saving flag, local time and next offset change."
}What the leaf hashes
{"body":"ac5387ff5a9f75df8496b6a4a17af6686537a94c54b283492b528578b26869b7","id":2202214,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813786499,"prev":null,"subject":"x402_bazaar:https://world-cities.x402tookit.com/city-timezone","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).
- 0x9a6f61099ee06601c7f4474c73935fa85a4d54b4aa919f8dd19680c0b8552d92
- 0xd56e5446144f91af9615ba5d3294781559fab4c7b1724038aaae5f5d561afe78
- 0x800ef8defefe4506ddbcd456097b2f65888700e3daa90c3d6bd5e740b0fb6f4e
- 0x391cf0e8523ea37f9086ee587bd554c512b367f4d0cfaeb044e7067c55afc179
- 0x7a4106e7b5ad8ea56c4c07c989247bb2ae6702ede7ac92524e87a60eeda5a3bf
- 0x79c69d58d4b066cec4b1c96e3215402ed6ce163a0ed0261a0b9ccae01df06a19
- 0x9d80176fdc3d4f6685f762c332a1c31545345edbdc5bf7cf47b995b08bffbef4
- 0xe27effa1d181734ccca97d0817b010429b0d2629c5fe13abd7b3939bbe29046c
- 0xf2c9a4241867a192709da16dbc9975940d528dd29421d3c5f7583e1a85d23386
- 0xf9f99eb845774204091da04c2dbcfd7015613134b3e6ab73e7220ec4c64c9ab5
- 0xa44c4a36b8d86fa938e0f579106116effb29fcc0a86614f8c076cc4254c220f6
- 0xbea97ef87badb4a269a9a806e24faae33a7711fec91ccdaba808349c0475fe9f
- 0x96eeba0e0bb8dfa0ca66d907340b43514f88c7ff36bd9a1299bad5cc5219d2d0
- 0xc5de092f33d9a5a2d3076d47423feb11b0630cdc080163babf6390bb04568ce5
- 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af