← The evidence ledger
Evidence row 125519
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-tools.vercel.app/api/concerts
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 1d03f3a95d51a5b0957b8530bded063be0af464229875626cbf165554a0238dd
- Leaf
- 0x22306e40a91f1d2f3d05f797e163644159b80e4591e165f1ecda32e604b62a07
What was observed
{
"endpoints": [
[
"x402",
"https://x402-tools.vercel.app/api/concerts"
]
],
"name": "x402-tools.vercel.app/api/concerts",
"owner_address": "0xbad1aa224bfe4feb460e12b2553dcdf98a7098d0",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xbAd1Aa224bFe4fEb460E12b2553DcDf98a7098d0",
"scheme": "exact"
}
],
"description": "Search for upcoming concerts. Supports city, date range, genre, and artist filtering.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"countryCode": "US",
"page": "0"
},
"type": "http"
},
"output": {
"example": [
{
"artists": [
"Khruangbin",
"Bob Moses"
],
"city": "Boston",
"date": "2026-04-15",
"name": "Khruangbin - A La Sala Tour",
"priceRange": {
"max": 150,
"min": 55
},
"time": "20:00:00",
"url": "https://example.com/event/abc123",
"venue": "Paradise Rock Club"
}
],
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"artists": {
"description": "Comma-separated artist names to filter by (e.g. Khruangbin,Bob Moses)",
"type": "string"
},
"city": {
"description": "City name (e.g. Boston, New York)",
"type": "string"
},
"countryCode": {
"description": "Country code filter (default US)",
"type": "string"
},
"endDateTime": {
"description": "End of date range in ISO 8601 (e.g. 2026-03-31T23:59:59Z)",
"type": "string"
},
"genre": {
"description": "Music genre. One of: Alternative, Ballads/Romantic, Blues, Classical, Country, Dance/Electronic, Folk, Hip-Hop/Rap, Jazz, Latin, Metal, Pop, R&B, Reggae, Rock, World.",
"type": "string"
},
"page": {
"description": "Page number for pagination (default 0)",
"type": "string"
},
"startDateTime": {
"description": "Start of date range in ISO 8601 (e.g. 2026-03-01T00:00:00Z)",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"items": {
"properties": {
"artists": {
"description": "Performer/artist names",
"items": {
"type": "string"
},
"type": "array"
},
"city": {
"description": "City name",
"nullable": true,
"type": "string"
},
"date": {
"description": "Local date (YYYY-MM-DD)",
"type": "string"
},
"name": {
"description": "Concert/event name",
"type": "string"
},
"priceRange": {
"description": "Ticket price range or null if unavailable",
"nullable": true,
"properties": {
"max": {
"description": "Maximum ticket price (USD)",
"type": "number"
},
"min": {
"description": "Minimum ticket price (USD)",
"type": "number"
}
},
"type": "object"
},
"time": {
"description": "Local time (HH:MM:SS) or null",
"nullable": true,
"type": "string"
},
"url": {
"description": "Event URL",
"nullable": true,
"type": "string"
},
"venue": {
"description": "Venue name",
"nullable": true,
"type": "string"
}
},
"required": [
"name",
"date",
"artists"
],
"type": "object"
},
"type": "array"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-23T23:27:33.421Z",
"quality": {
"l30DaysTotalCalls": 6,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-10-23T23:27:33.273Z"
},
"resource": "https://x402-tools.vercel.app/api/concerts",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Search for upcoming concerts. Supports city, date range, genre, and artist filtering."
}What the leaf hashes
{"body":"1d03f3a95d51a5b0957b8530bded063be0af464229875626cbf165554a0238dd","id":125519,"kind":"listing","method":"baseline/1","observed_us":1793025626418795,"prev":null,"subject":"x402_bazaar:https://x402-tools.vercel.app/api/concerts","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x22307b309d6b54e7229dbadd6e989d258855158f6e94917732e8d6d598fe4915
- 0x2e399b4e8a87115e7ecb09b4a91d8b9cdb4b1ba73f54befb1f05f744865e43aa
- 0x175f4dbd5046195b7d5e4fdebb6c1b88d78c18764a222274ab9b1fc48f01d9cf
- 0x4a887cbc95dc8ccecee62ec7d086f7989aa93697a41bb2ff42a157ca2679e2b1
- 0x1654d4ab8468ebc0bcde1dda467ee46bb47780fd3cd0add329d038b4becaa91a
- 0x8df123fa39c99ecb324594b06ae4280c958e9d91031667f84c42e0c607733421
- 0x172ccb002a3d9f90711324102a1a96ccc3887d139f436b30e0888a9a85edba25
- 0xf1282a40ef8f041b9cf865b6071cc7ec5c5e05ebcaf1b308b18d9570e1de3849
- 0x259a8f62e3aa246feb7ec9af3e7725c1345e5d2a573b3b24c6b7bd479cacd7c3
- 0x799af748a278188f9c62b046d3a85d0c1267a4af67aeaf337854a2e36cc39487
- 0xda2a271b0447c8ac22315d2ea7582e04968ddef46c7cbd29d7462934a9b3b37a
- 0xac5b705d705b0f1bc42cf2ad1a7f1f197ea96178ce0704432cbb5d556e8671a4
- 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae