← The evidence ledger
Evidence row 1038975
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://coord.taifoon.dev/v1/x402/class/market.price
- Recorded
- Previous row
- #751054
- Body SHA-256
- 8ba97519a17e06f09782ee6cd9a03113b067ca7e92f87adf391b2b8cdac075bd
- Leaf
- 0xaff97a636dec60458ebf1bd4d79d0f603ba434b0f07c838a2cfe730c526e63dc
What was observed
{
"endpoints": [
[
"x402",
"https://coord.taifoon.dev/v1/x402/class/market.price"
]
],
"name": "Taifoon",
"owner_address": "0x3574999dd4c96eb73bd6e11d4177010c83e14f5b",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:8453",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:42161",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x3600000000000000000000000000000000000000",
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extra": {
"name": "USDC",
"version": "2"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:5042",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extra": {
"name": "Global Dollar",
"version": "1"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:4663",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extra": {
"name": "USDC",
"version": "2"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:143",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extra": {
"feePayer": "F742C4VfFLQ9zRQyithoj5229ZgtX2WqKCSFKgH2EThq"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "GQcEn5pLcweo7qaiy3rDdsiUPiygygmFBaixNtNqhQVD",
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"scheme": "exact"
}
],
"description": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"symbol": "ETH"
},
"type": "http"
},
"output": {
"example": {
"age_s": 41,
"as_of": "2026-10-11T18:20:00.000Z",
"bar": {
"c": 2538.81,
"h": 2539.1,
"l": 2538.6,
"o": 2538.88,
"t": 1791742740,
"tf": "1m",
"v": 12.4
},
"class": "market.price",
"digest": "9f2c…",
"fresh": true,
"ok": true,
"price_usd": 2538.81,
"reference": {
"age_s": 600,
"off_pct": 0.02,
"source": "Chainlink ETH / USD on Base",
"usd": 2539.4
},
"replay": "https://clob.taifoon.dev/tape/v1/candles/ETH/1m?from=1791742740&to=1791742799",
"source": "the Taifoon venue tape (https://clob.taifoon.dev/tape/v1/candles/ETH/1m): the close of the last closed 1-minute bar",
"symbol": "ETH"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"properties": {
"symbol": {
"description": "the symbol to price: one the Taifoon venue tape holds",
"enum": [
"BTC",
"ETH",
"SOL",
"NQ",
"ES",
"YM"
],
"type": "string"
}
},
"required": [
"symbol"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"age_s": {
"description": "seconds since the bar closed; at most 180, else no price is served",
"type": "integer"
},
"as_of": {
"description": "when the bar closed (ISO 8601)",
"type": "string"
},
"digest": {
"description": "sha256 over the bar’s \"t,o,h,l,c,v\" line (the market.candles digest)",
"type": "string"
},
"price_usd": {
"type": "number"
},
"replay": {
"description": "the tape GET that returns the same bar",
"type": "string"
},
"symbol": {
"enum": [
"BTC",
"ETH",
"SOL",
"NQ",
"ES",
"YM"
],
"type": "string"
}
},
"required": [
"symbol",
"price_usd",
"as_of",
"age_s",
"digest"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"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/v1791930045/bazaar-icons/4c3bc9abe8ba2916.png",
"lastUpdated": "2026-10-28T23:08:24.086Z",
"quality": {
"l30DaysTotalCalls": 15,
"l30DaysUniquePayers": 11,
"lastCalledAt": "2026-10-28T23:08:19.441Z"
},
"resource": "https://coord.taifoon.dev/v1/x402/class/market.price",
"serviceName": "Taifoon",
"tags": [
"market",
"price"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Latest USD price of BTC, ETH, SOL, NQ, ES, YM from the Taifoon venue tape: the close of the last closed 1-minute bar, its time, age and sha256 digest, replayable with one GET. Only symbols the tape holds; a price older than 180 s is never served as current (nothing is charged). BTC, ETH, SOL are held to Chainlink on Base within 1 % when its feed is under 1 h old. 0.003 USDC a call."
}What the leaf hashes
{"body":"8ba97519a17e06f09782ee6cd9a03113b067ca7e92f87adf391b2b8cdac075bd","id":1038975,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298277200054,"prev":751054,"subject":"x402_bazaar:https://coord.taifoon.dev/v1/x402/class/market.price","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).
- 0xaff94d6bf7b7d3a6cbd07bc38ff12ebdbd57fa1f5eca945ea424c675f00a944c
- 0xd6e5e1bf4f1e51fe9506fd4a83ba69dcac885f60e161e0b5994d3d599ef1d858
- 0x21123639e8aafabf4b9e0ddba8147e6b6129a3f46b0fb02f64c16198039603b2
- 0x48c9b49bac57571c3313cbaf9bc27492c28bb8706c08e96d63e73fa6201d8699
- 0x73ad6cbe43abfd06a47e72ca152e930907a1e020108860318504bc63a2b6c257
- 0x19eb14a7341420440244a6ad0bb393ca33e460f5210808944b18c73e182c7b4a
- 0x51ca2b767dc419d51f80d6f3cd5a198d041ca0c3562b376b1b40698109a8ed45
- 0xc7218cd6cc30556ce2d3d72c86983c0d1535e0f810d5fcdb1c50225e24a87d9f
- 0xb5858332dc4c2050475a9f0cb0c34e15a445b3e9597bc3937b8a396e02974a1d
- 0x1c2fdc1a2cb65e0e4413f94bc576299de4723d48c42c67881b5c44f18768b5e4
- 0xcb2ed29621f190fe63c271d577194ddd17826dd7e2cd526878c423c180fd437a
- 0xfc65c74dda5d799e81996842c804510f5f959a0128a6babbc26afed4b057c5d4
- 0x30dba3897a2e6907174b0058b94302f9cd01c20ba1fffe70ca722237279171ed
- 0x585b1e0c9b8e6cc02683a3bcbd6f86329575401feac9ee51a7efd21ed87f7ed0
- 0xaa1d19094c2ce6d011a3c40533fa7efee207719d6c482ffc47018b28e5518acc
- 0xef5d5572aac8f06b61579b7167b369fcb479d9027d4037dc9cacff9e3a26ffd2
- 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
- 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785
- Day root
- 0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
- Chained
- 0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
- Published
- On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1