← The evidence ledger
Evidence row 65511
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchange
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 50853080c5e189ab6bf4365701df2a92375be716b905ea49293095df1319b826
- Leaf
- 0x21831e23c272189080049038488bb34326bc7796e222624099b75d45c812cf27
What was observed
{
"endpoints": [
[
"x402",
"https://api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchange"
]
],
"name": "SiteCheck Crypto & Finance",
"owner_address": "0xb8491f953e6860d3b5840b73c60883ff099ceafa",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "J8vnmBx4pS1X7UUBTfz1yWBKiw69Dj2yRGRHDaXBRdhR",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "USDC",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:5042",
"payTo": "0xa4751fCAa83c9669cfe507bb6807507729839be3",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
"extra": {
"name": "USDC",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:143",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
"extra": {
"name": "USDC",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:480",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:10",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:43114",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
"extra": {
"name": "USDC",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42220",
"payTo": "0xb8491F953e6860D3b5840b73c60883Ff099ceAfA",
"scheme": "exact"
},
{
"amount": "0.002",
"asset": "524C555344000000000000000000000000000000",
"extra": {
"areFeesSponsored": false,
"invoiceId": "5a2cf285-8f06-465f-9d4a-f6d0a05c8960",
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ",
"scheme": "exact"
},
{
"amount": "1536",
"asset": "XRP",
"extra": {
"areFeesSponsored": false,
"invoiceId": "4b385ea9-c28d-462d-8b9e-33364d6276b6",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ",
"scheme": "exact"
}
],
"description": "Coinbase Exchange (US spot) order book for one product: best bid and ask, spread, USD depth within 1% and 2% of mid (aggregated level-2 levels only), 24h base volume, 24h RFQ (institutional request-for-quote) volume, last price and 24h high/low. Coinbase Exchange data only, not Coinbase Advanced or other venues.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"product": "BTC-USD"
},
"type": "http"
},
"output": {
"example": {
"bestAsk": 81509.89,
"bestBid": 81509.88,
"bookSequence": 138198932896,
"checkedAt": "2026-10-23T09:35:56.640Z",
"depthWithin1pct": {
"askUsd": 6409025,
"bidUsd": 15266290
},
"depthWithin2pct": {
"askUsd": 8372745,
"bidUsd": 29406298
},
"high24h": 82094.85,
"last": 81518.52,
"low24h": 80789.61,
"midPrice": 81509.88500000001,
"open24h": 81853.94,
"product": "BTC-USD",
"rfqVolume24hBase": 61.219955,
"source": "https://api.exchange.coinbase.com/products/BTC-USD/book?level=2",
"spreadPct": 0.000012,
"volume24hBase": 6230.94905992,
"volume30dBase": 151632.53425096
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"product": {
"description": "Coinbase product id such as BTC-USD or ETH-USD",
"type": "string"
}
},
"required": [
"product"
],
"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": "2026-10-23T19:45:38.265Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-23T19:45:37.334Z"
},
"resource": "https://api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchange",
"serviceName": "SiteCheck Crypto & Finance",
"tags": [
"crypto",
"coinbase",
"spot",
"exchange"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Coinbase Exchange (US spot) order book for one product: best bid and ask, spread, USD depth within 1% and 2% of mid (aggregated level-2 levels only), 24h base volume, 24h RFQ (institutional request-for-quote) volume, last price and 24h high/low. Coinbase Exchange data only, not Coinbase Advanced or other venues."
}What the leaf hashes
{"body":"50853080c5e189ab6bf4365701df2a92375be716b905ea49293095df1319b826","id":65511,"kind":"listing","method":"baseline/1","observed_us":1793025458543195,"prev":null,"subject":"x402_bazaar:https://api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchange","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.