← The evidence ledger
Evidence row 72258
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://chain.tollkit.dev/chain/history
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- cfd701dffc294076da87abbb12c8e414f33fcecdf86146fa1f05fe36b290db60
- Leaf
- 0x9bee54cf178f6020b1b23cd496682c4d704371e0f69680c2df6dc17fe5515a1e
What was observed
{
"endpoints": [
[
"x402",
"https://chain.tollkit.dev/chain/history"
]
],
"name": "Crypto Price History",
"owner_address": "0x6b11c413f916ecfa846302ff05c171c3b497924e",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6b11C413f916eCFA846302ff05c171c3B497924e",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "E5Z17Jxsr4cimRUpgcZV29PnX3SqBWH3TqzUsS3DBgkU",
"scheme": "exact"
}
],
"description": "Crypto price history: give an asset like ETH, BTC or SOL and up to 365 days, get past USD prices from Chainlink's on-chain feed with times, plus first, last, high, low and change.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"asset": "ETH",
"days": 7,
"points": 6
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"asset": "ETH",
"chain": "ethereum",
"days": 7,
"explorer_url": "https://etherscan.io/address/0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419",
"feed": "0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419",
"note": "Each point is a real Chainlink round: the one nearest each evenly spaced time, with the time it was written on-chain. Chainlink writes a new round when the price moves past a set threshold or a set time passes, so high and low are of these points, not every trade.",
"pair": "ETH / USD",
"points": [
{
"price_usd": 2523.8693,
"round_id": "129127208515966895888",
"time": "2026-10-13T07:25:11.000Z"
},
{
"price_usd": 2452.57,
"round_id": "129127208515966895931",
"time": "2026-10-14T14:00:11.000Z"
},
{
"price_usd": 2451.42,
"round_id": "129127208515966896004",
"time": "2026-10-16T05:04:59.000Z"
},
{
"price_usd": 2433.7582,
"round_id": "129127208515966896047",
"time": "2026-10-17T10:31:11.000Z"
},
{
"price_usd": 2371.0234,
"round_id": "129127208515966896091",
"time": "2026-10-18T22:01:23.000Z"
},
{
"price_usd": 2395.39,
"round_id": "129127208515966896135",
"time": "2026-10-20T06:37:23.000Z"
}
],
"read_at": "2026-10-20T07:22:34.320Z",
"source": "Chainlink Data Feeds on Ethereum, read on-chain",
"summary": {
"change_pct": -5.09,
"first_usd": 2523.8693,
"high_usd": 2523.8693,
"last_usd": 2395.39,
"latest_round_at": "2026-10-20T06:37:23.000Z",
"low_usd": 2371.0234
}
},
"type": "json"
}
},
"schema": {
"properties": {
"input": {
"properties": {
"body": {
"properties": {
"asset": {
"description": "Symbol, e.g. \"ETH\", \"BTC\", \"SOL\", \"LINK\".",
"type": "string"
},
"days": {
"default": 7,
"maximum": 365,
"minimum": 1,
"type": "integer"
},
"points": {
"default": 24,
"maximum": 100,
"minimum": 2,
"type": "integer"
}
},
"required": [
"asset"
],
"type": "object"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"asset": {
"type": "string"
},
"chain": {
"type": "string"
},
"days": {
"type": "integer"
},
"explorer_url": {
"type": "string"
},
"feed": {
"type": "string"
},
"history_starts": {
"type": "string"
},
"note": {
"type": "string"
},
"pair": {
"type": "string"
},
"points": {
"items": {
"properties": {
"price_usd": {
"type": "number"
},
"round_id": {
"type": "string"
},
"time": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"read_at": {
"type": "string"
},
"source": {
"type": "string"
},
"summary": {
"properties": {
"change_pct": {
"type": [
"number",
"null"
]
},
"first_usd": {
"type": "number"
},
"high_usd": {
"type": "number"
},
"last_usd": {
"type": "number"
},
"latest_round_at": {
"type": "string"
},
"low_usd": {
"type": "number"
}
},
"type": "object"
}
},
"required": [
"asset",
"pair",
"feed",
"points",
"summary"
],
"type": "object"
}
},
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791089541/bazaar-icons/6490ef4ad700a0e0.png",
"lastUpdated": "2026-10-25T11:11:17.593Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-25T11:11:17.352Z"
},
"resource": "https://chain.tollkit.dev/chain/history",
"serviceName": "Crypto Price History",
"tags": [
"price-history",
"historical-prices",
"chainlink",
"crypto",
"ohlc"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Crypto price history: give an asset like ETH, BTC or SOL and up to 365 days, get past USD prices from Chainlink's on-chain feed with times, plus first, last, high, low and change."
}What the leaf hashes
{"body":"cfd701dffc294076da87abbb12c8e414f33fcecdf86146fa1f05fe36b290db60","id":72258,"kind":"listing","method":"baseline/1","observed_us":1793025485564068,"prev":null,"subject":"x402_bazaar:https://chain.tollkit.dev/chain/history","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.