← The evidence ledger
Evidence row 1039778
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-tools.vercel.app/api/concerts
- Recorded
- Previous row
- #548336
- Body SHA-256
- 8287b8cef04358b5ba97fb7133647475f9d539953bb86922231fee3b0ba0b4cd
- Leaf
- 0x8d95020028d6f52ddb717252fbc6ae6a659af4462681dcd3af1006d24634553c
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": "2026-10-27T09:55:01.542Z",
"quality": {
"l30DaysTotalCalls": 6,
"l30DaysUniquePayers": 6,
"lastCalledAt": "2026-10-27T09:55:01.381Z"
},
"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":"8287b8cef04358b5ba97fb7133647475f9d539953bb86922231fee3b0ba0b4cd","id":1039778,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298461769457,"prev":548336,"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 (242798 rows).
- 0x8d959a57ab27020a5f2caadefc22a0878ec17d3ee9e8d702d57e6cbf91423db1
- 0x17dab97cd78fc6b76de4015fb7393a0e455232544ca9b42f83e693afcbb2f12b
- 0x87e0bd18e7861c208829c47fc2e7e050451ebaba6b0c22eab2e7d7385960a83a
- 0xc2a8d8696400bffdcf219e71104c99fcbe1d7c22a847305dfb40da83b73b3041
- 0x49ab33ba1286501f8309f843decdaec45b4fe2a665507ac06d4c4937b8da237d
- 0x94d31a64814a478eb798546d3856e4ee60ce8a6cd0c4053390e1b5cbb52178ff
- 0x89e2c0a80b573a6416096c20d5736c9666ea9dfc337148ed356d89c0e210780f
- 0x894385285801240d4bd3b823394c7ad9234c6c887a77a865ec1f6a22223c1247
- 0x9acc937252de3b5c9435de0366411efbdb72c1b82958b25dd0fe9a077c5e4f5a
- 0xbbe6b89c9ed6d50d9d3c156be0d5a62f6a72b459f97c8432fae1638db561b04d
- 0x3b3eab346e7a47b87ebe61f6e320adc10d904590774eb8bb5050c62663102131
- 0x1d615b19c2c04fb6c9c677cece38f67ef7e6752f8b1383a6004cc0c2ad4916b2
- 0x63a21345a1456bb8748156be064b8f4fbf3ec1a36d6e9dfc0f579765a560fffc
- 0x2ec9677def553f2064a7e34081a129a91f7999a429ef2705c4c539a9602f3bbf
- 0x09d5ec1c01b0f087fe9f6cc95432188552da9adc88004aed57401ea49f2b56d4
- 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
- 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
- 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785
- Day root
- 0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
- Chained
- 0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
- Published
- On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1