← The evidence ledger
Evidence row 1262200
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://kr-x402-mvp.kgy5612.workers.dev/crypto/prices
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- dd7dd596cc02b92efda015e2741be8772bb4f3b095b11eb3e6c409608a1f0df3
- Leaf
- 0xbfcbcf10d4c650c5877af864d354f2ea36b2768827634fc025e1be7520bf23bf
What was observed
{
"endpoints": [
[
"x402",
"https://kr-x402-mvp.kgy5612.workers.dev/crypto/prices"
]
],
"name": "Crypto Microdata for Agents",
"owner_address": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
"scheme": "exact"
}
],
"description": "Spot USD prices: median of Coinbase, Kraken, Bybit, Binance, CoinGecko (whichever respond) with n_sources, dispersion_bps, with 24h change/volume. symbols=BTC,ETH,SOL default; also BNB,XRP,DOGE,ADA,AVAX,LINK,SUI.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"symbols": "BTC,ETH,SOL"
},
"type": "http"
},
"output": {
"example": {
"prices": {
"BTC": {
"binance_usdt": 80860,
"change_24h_pct": 1.2,
"coinbase_usd": 80875.4,
"price_usd": 80867.7
}
},
"sources": [
"https://api.binance.com",
"https://api.coinbase.com"
],
"updated_at": "2026-10-28T11:00:00Z"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"symbols": {
"description": "Comma-separated symbols (default BTC,ETH,SOL)",
"examples": [
"BTC,ETH,SOL",
"BTC"
],
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-30T01:32:26.345Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-30T01:32:26.218Z"
},
"resource": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/prices",
"serviceName": "Crypto Microdata for Agents",
"tags": [
"crypto",
"prices",
"bitcoin",
"ethereum",
"solana"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Spot USD prices: median of Coinbase, Kraken, Bybit, Binance, CoinGecko (whichever respond) with n_sources, dispersion_bps, with 24h change/volume. symbols=BTC,ETH,SOL default; also BNB,XRP,DOGE,ADA,AVAX,LINK,SUI."
}What the leaf hashes
{"body":"dd7dd596cc02b92efda015e2741be8772bb4f3b095b11eb3e6c409608a1f0df3","id":1262200,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385520560491,"prev":null,"subject":"x402_bazaar:https://kr-x402-mvp.kgy5612.workers.dev/crypto/prices","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (243099 rows).
- 0xbfcbb97743733baf0ffb8a40413bc2541e17e8dbbedd3815d3a71cbf51b57b17
- 0xb0ea1c1a365f8c53b5971a162c189630fecb1652750523f619bb839a71864d16
- 0xcb2c49f0d84a17a4d4c5c4d50b8c86c2cca5acfad516991e6f2f830e5c91a8b1
- 0xf1fa7372bc1aa0c8e6aa483602e971af78ccc3246787a6aec0f0d7d891dfd942
- 0xd61f9bde8df38735fb14510dfc36c04f107b114768c62c182e5e5030abbed586
- 0xd9886eefe13506a7d5f1c452a9a5c45cb9ec39c2b9314857e5fd0d81455e02a8
- 0x7133b0bade64f8b9eab8912770de12deb1967783c9bbcf6c10de22efa8c93a64
- 0xa869ebc4fc0f451058fa621934c9afbb9ef4ee6fe62823b69db59583b9a331f4
- 0x64569aba5a707abd5ba1db6e941bcfdefc6eda7591613f7e6e1c4642207fb6ff
- 0x720a215e87900ab4242674870d9bae521f5d174cf40024165151a986986849fd
- 0x4e111a231c94cd6132b734106858f8fd64ae1b632649e951400168586b5ed0a2
- 0xc9fcf715890e0959e9a1e2a6200b4188895afcdbc3ba411bcc0423fc7c484b45
- 0x0fe1386407f8ba162c04ac3fa7c25f73252796af4cb5a8f2d8f2ec65dc450f79
- 0x342f35813d736e85ba1881bcb69ecc7b4b96d68e557b8417f1f4ec705ab16ab6
- 0x9fb4eebd924fd42d4eb61d55691812de0db9242fc9c0dabb65c4054447246797
- 0x0c59b8770d2782eb535aefbb9b2f6810bab4757f51b37e00f5147713a1de9481
- 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
- 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d
- Day root
- 0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
- Chained
- 0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
- Published
- On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861