← The evidence ledger
Evidence row 65905
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.debyko.com/v2/snapshots
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c8c5e14540b32250eee9a7a6b3d9d51c6d1bc8375f26c9b4128e63d0a60c6ef2
- Leaf
- 0x16a3bd329e871194754bd5dfe80968f3fe33736ce971e01b0776071ca201ce8b
What was observed
{
"endpoints": [
[
"x402",
"https://api.debyko.com/v2/snapshots"
]
],
"name": "DEBYKO",
"owner_address": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"scheme": "exact"
},
{
"amount": "9000000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"scheme": "exact"
},
{
"amount": "29000000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"scheme": "exact"
},
{
"amount": "99000000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"scheme": "exact"
},
{
"amount": "249000000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"scheme": "exact"
}
],
"description": "Crypto perpetual futures funding rate, open interest, mark and index price, basis, bid and ask, order book depth and 24h volume: the latest value of every market across 19 venues (Aster Perpetuals, Avantis, Binance USD-M Futures, Bitget Perpetual Futures, Bybit Perpetuals and 14 more). DQL filter, e.g. base in (BTC). Each value carries venue timestamp, receive time and age; stale values are withheld. No charge when nothing recorded is returned. 0.005 USDC per call.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"layers": [
"funding",
"oi",
"mark"
],
"where": "base in (BTC, ETH)"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"evaluated_at": "2026-10-14T12:00:05Z",
"freshness": {
"funding": null,
"mark": null,
"oi": null
},
"items": [
{
"instrument": "BTC-PERP",
"kind": "perpetual",
"layers": {
"funding": {
"age_ms": 1000,
"anchor": "receipt",
"horizon_source": "assumed",
"received_at": "2026-10-14T12:00:04Z",
"status": "present",
"units": {
"funding": "fraction",
"funding_8h": "fraction"
},
"valid_until": "2026-10-14T12:05:04Z",
"values": {
"funding": 0.0000125,
"funding_8h": 0.0001
},
"venue_age_ms": null,
"venue_ts": null
},
"mark": {
"age_ms": 1000,
"anchor": "receipt",
"horizon_source": "assumed",
"received_at": "2026-10-14T12:00:04Z",
"status": "present",
"units": {
"basis": "fraction",
"index": "quote",
"mark": "quote"
},
"valid_until": "2026-10-14T12:05:04Z",
"values": {
"basis": 0.0000358,
"index": 64248.2,
"mark": 64250.5
},
"venue_age_ms": null,
"venue_ts": null
},
"oi": {
"age_ms": 1000,
"anchor": "receipt",
"horizon_source": "assumed",
"received_at": "2026-10-14T12:00:04Z",
"status": "present",
"units": {
"oi": "base"
},
"valid_until": "2026-10-14T12:05:04Z",
"values": {
"oi": 30000.5
},
"venue_age_ms": null,
"venue_ts": null
}
},
"quote": "USDC",
"venue": "HYPERLIQUID",
"venue_symbol": "BTC"
}
],
"missing": [],
"receipt_id": "3yLdkPqXw7ZaB2nVt0RhUe",
"served_at": "2026-10-14T12:00:05.000000Z",
"units": "published"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"allow_stale": {
"default": false,
"type": "boolean"
},
"include_raw": {
"default": false,
"type": "boolean"
},
"include_synthetic": {
"default": false,
"type": "boolean"
},
"kind": {
"default": "perpetual",
"description": "Market kind: perpetual (default), spot or all.",
"enum": [
"perpetual",
"spot",
"all"
],
"type": "string"
},
"layers": {
"description": "Layers to read: ticker, mark, funding, oi, book, stats, venue_depth. Every layer when omitted.",
"items": {
"enum": [
"ticker",
"mark",
"funding",
"oi",
"book",
"stats",
"venue_depth"
],
"type": "string"
},
"type": "array"
},
"number_format": {
"default": "json",
"description": "json (default) returns numbers; string returns them as strings with the same digits.",
"enum": [
"json",
"string"
],
"type": "string"
},
"units": {
"default": "published",
"description": "published keeps each venue's own unit (default); base converts quantities to the base asset.",
"enum": [
"published",
"base"
],
"type": "string"
},
"where": {
"description": "DQL selection of the markets to read, e.g. base in (BTC, ETH) or venue = HYPERLIQUID and base = BTC.",
"oneOf": [
{
"type": "string"
},
{
"type": "object"
}
]
}
},
"required": [],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"evaluated_at": {
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{3})?Z$",
"type": "string"
},
"freshness": {
"additionalProperties": {
"type": [
"string",
"null"
]
},
"type": "object"
},
"items": {
"items": {
"additionalProperties": false,
"properties": {
"identity_basis": {
"enum": [
"recorded",
"reconstructed"
],
"type": "string"
},
"identity_corrected_at": {
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{3})?Z$",
"type": "string"
},
"instrument": {
"type": [
"string",
"null"
]
},
"kind": {
"enum": [
"perpetual",
"spot"
],
"type": "string"
},
"layers": {
"type": "object"
},
"quote": {
"type": [
"string",
"null"
]
},
"reason": {
"type": "string"
},
"venue": {
"type": "string"
},
"venue_symbol": {
"type": "string"
}
},
"required": [
"instrument",
"venue",
"venue_symbol",
"quote",
"layers"
],
"type": "object"
},
"type": "array"
},
"missing": {
"items": {
"additionalProperties": false,
"properties": {
"instrument": {
"type": "string"
},
"reason": {
"enum": [
"not_listed"
],
"type": "string"
},
"venue": {
"type": "string"
}
},
"required": [
"instrument",
"venue",
"reason"
],
"type": "object"
},
"type": "array"
},
"normalisation_version": {
"type": "string"
},
"receipt_id": {
"pattern": "^[0-9A-Za-z]{22}$",
"type": "string"
},
"served_at": {
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}\\.[0-9]{6}Z$",
"type": "string"
},
"units": {
"enum": [
"published",
"base"
],
"type": "string"
}
},
"required": [
"evaluated_at",
"units",
"freshness",
"items",
"missing"
],
"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/v1790948379/bazaar-icons/d75ee889ee21cd6b.png",
"lastUpdated": "2026-10-15T07:19:28.614Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-15T07:19:28.142Z"
},
"resource": "https://api.debyko.com/v2/snapshots",
"serviceName": "DEBYKO",
"tags": [
"funding-rate",
"open-interest",
"perpetuals",
"derivatives",
"crypto"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Crypto perpetual futures funding rate, open interest, mark and index price, basis, bid and ask, order book depth and 24h volume: the latest value of every market across 19 venues (Aster Perpetuals, Avantis, Binance USD-M Futures, Bitget Perpetual Futures, Bybit Perpetuals and 14 more). DQL filter, e.g. base in (BTC). Each value carries venue timestamp, receive time and age; stale values are withheld. No charge when nothing recorded is returned. 0.005 USDC per call."
}What the leaf hashes
{"body":"c8c5e14540b32250eee9a7a6b3d9d51c6d1bc8375f26c9b4128e63d0a60c6ef2","id":65905,"kind":"listing","method":"baseline/1","observed_us":1793025459354336,"prev":null,"subject":"x402_bazaar:https://api.debyko.com/v2/snapshots","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x16a427018a35834c4bd4414019254c4ce0c2f30740695d2bd1166d565c070ee7
- 0xef6789c17eedb31d2c6877440f7a432ffd4d98f735e051a4c55b54e91a403652
- 0xbf6956586586786cc729cef3dd16b01c12a8f9805e83d83232ea6125e4c1d16a
- 0x587ed84c36f9936602e8ad7d80511b720334fdaa3c2c8adf2bf50accc452e3e3
- 0x432cf5befb66fd6f8b32ff2ba70aa20cfc37961e365290a0b3f849c8f79e5e93
- 0xd1dd9bbc0b05070fa4d771ebf41873bf0074f59b2592eb9446b673b14d867b33
- 0x3dc11b936f955076f10cc7fe2454c9731af43a415cd66985b393a3c02a7d8144
- 0x1fc307de931aa2e3e3c90f396faf8256bd59e00cf216c0426a34c72b27eccd31
- 0x649aa5cafaafc7d2ca7ec3470d371c71fe05e3286a3aeafcc71734bb93fd3776
- 0x051922b623453bd4bca9a9af0907e733bcc4583746990b8b7f187b87a9891e47
- 0x1ff0b13d2481c9da18eda22ffeb00b1ce27c383301867cb629c19e9a2e4b869a
- 0x856fd0d049baa5f07cd2d5d524b40c994bed22cb46ea15af4cc075b3f3f3d444
- 0x32f46c5f73ecbfd4f770f7f760a79bee2afed4b3e7572fa882b3e7dce8df4356
- 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae