← The evidence ledger
Evidence row 65904
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.debyko.com/v2/screen
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8875f8c66c5e6829b92110658c65caf25ff2212e8acdf8f9dd762abb748e3eb5
- Leaf
- 0xafea18ddbb3b3b3a78d77f42377f40f9382b8afb796ecf5b738e161c75ae3715
What was observed
{
"endpoints": [
[
"x402",
"https://api.debyko.com/v2/screen"
]
],
"name": "DEBYKO",
"owner_address": "0x17b2c55872338727660aa77776a4056a1a3158ec",
"raw": {
"accepts": [
{
"amount": "10000",
"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 screener that finds markets across 19 venues (Aster Perpetuals, Avantis, Binance USD-M Futures, Bitget Perpetual Futures, Bybit Perpetuals, Coinbase Global Derivatives and 13 more) by funding rate, open interest, price, basis, volume or data age with a DQL query, e.g. any(venues where funding > 0). Returns the matching instruments with each venue's value, its timestamp and age. No charge when nothing recorded is returned. 0.01 USDC per call.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"limit": 2,
"query": "any(venues where funding > 0)"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"as_of": null,
"dql": "1",
"evaluated_at": "2026-10-14T12:00:05Z",
"freshness": {},
"instruments": [
{
"instrument": "BTC-PERP",
"result": "true",
"values": {},
"venues": [
{
"quote": "USDC",
"symbol": "BTC",
"values": {
"funding": {
"age_ms": 1000,
"anchor": "receipt",
"horizon_source": "assumed",
"layer": "funding",
"received_at": "2026-10-14T12:00:04Z",
"status": "present",
"unit": "fraction",
"valid_until": "2026-10-14T12:05:04Z",
"value": 0.0000125,
"venue": "HYPERLIQUID",
"venue_age_ms": null,
"venue_ts": null
}
},
"venue": "HYPERLIQUID"
},
{
"quote": "USD",
"symbol": "PF_XBTUSD",
"values": {
"funding": {
"age_ms": 1000,
"anchor": "receipt",
"horizon_source": "assumed",
"layer": "funding",
"received_at": "2026-10-14T12:00:04Z",
"status": "present",
"unit": "fraction",
"valid_until": "2026-10-14T12:05:04Z",
"value": 0.00001,
"venue": "KRAKEN-FUTURES",
"venue_age_ms": null,
"venue_ts": null
}
},
"venue": "KRAKEN-FUTURES"
}
]
}
],
"page": {
"limit": 2,
"next_cursor": null,
"returned": 1
},
"query": {
"json": {
"condition": {
"type": "any",
"where": {
"left": {
"name": "funding",
"type": "field"
},
"op": ">",
"right": {
"type": "number",
"value": 0
},
"type": "cmp"
}
},
"dql": "1"
},
"string": "any(venues where funding > 0)"
},
"settled": false
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"allow_stale": {
"default": false,
"type": "boolean"
},
"cursor": {
"description": "The next_cursor of the previous answer, for the next page.",
"type": "string"
},
"include_atoms": {
"default": false,
"type": "boolean"
},
"include_unknown": {
"default": false,
"description": "true also returns the instruments the data could not decide.",
"type": "boolean"
},
"limit": {
"default": 100,
"description": "How many instruments one page returns.",
"minimum": 1,
"type": "integer"
},
"number_format": {
"default": "json",
"enum": [
"json",
"string"
],
"type": "string"
},
"query": {
"description": "DQL condition on markets, e.g. any(venues where funding > 0).",
"type": "string"
},
"query_object": {
"type": "object"
},
"units": {
"default": "published",
"enum": [
"published",
"base"
],
"type": "string"
}
},
"required": [],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"as_of": {
"oneOf": [
{
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{3})?Z$",
"type": "string"
},
{
"type": "null"
}
]
},
"capabilities_as_of": {
"oneOf": [
{
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{3})?Z$",
"type": "string"
},
{
"type": "null"
}
]
},
"dql": {
"type": "string"
},
"evaluated_at": {
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{3})?Z$",
"type": "string"
},
"freshness": {
"additionalProperties": {
"type": [
"string",
"null"
]
},
"type": "object"
},
"instruments": {
"items": {
"additionalProperties": false,
"properties": {
"instrument": {
"type": "string"
},
"result": {
"enum": [
"true",
"false",
"unknown"
],
"type": "string"
},
"scopes": {
"type": "object"
},
"values": {
"type": "object"
},
"venues": {
"type": "array"
}
},
"required": [
"instrument",
"result",
"values",
"venues"
],
"type": "object"
},
"type": "array"
},
"listings_as_of": {
"oneOf": [
{
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{3})?Z$",
"type": "string"
},
{
"type": "null"
}
]
},
"normalisation_version": {
"type": "string"
},
"page": {
"additionalProperties": false,
"properties": {
"limit": {
"type": "integer"
},
"next_cursor": {
"type": [
"string",
"null"
]
},
"returned": {
"type": "integer"
}
},
"required": [
"limit",
"returned",
"next_cursor"
],
"type": "object"
},
"query": {
"additionalProperties": false,
"properties": {
"json": {
"type": "object"
},
"string": {
"type": "string"
}
},
"required": [
"string",
"json"
],
"type": "object"
},
"receipt_id": {
"pattern": "^[0-9A-Za-z]{22}$",
"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"
},
"settled": {
"type": "boolean"
},
"timeframe": {
"type": "string"
}
},
"required": [
"dql",
"query",
"evaluated_at",
"as_of",
"settled",
"freshness",
"instruments",
"page"
],
"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": "2026-10-22T22:40:57.937Z",
"quality": {
"l30DaysTotalCalls": 208,
"l30DaysUniquePayers": 6,
"lastCalledAt": "2026-10-22T22:40:57.458Z"
},
"resource": "https://api.debyko.com/v2/screen",
"serviceName": "DEBYKO",
"tags": [
"screener",
"funding-rate",
"open-interest",
"perpetuals",
"crypto"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Crypto perpetual futures screener that finds markets across 19 venues (Aster Perpetuals, Avantis, Binance USD-M Futures, Bitget Perpetual Futures, Bybit Perpetuals, Coinbase Global Derivatives and 13 more) by funding rate, open interest, price, basis, volume or data age with a DQL query, e.g. any(venues where funding > 0). Returns the matching instruments with each venue's value, its timestamp and age. No charge when nothing recorded is returned. 0.01 USDC per call."
}What the leaf hashes
{"body":"8875f8c66c5e6829b92110658c65caf25ff2212e8acdf8f9dd762abb748e3eb5","id":65904,"kind":"listing","method":"baseline/1","observed_us":1793025459352177,"prev":null,"subject":"x402_bazaar:https://api.debyko.com/v2/screen","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).
- 0xafea1f22bdd9cd613bbbd4cbd6d5a7f2e8066f21ce8c90322a1603bae6bccb62
- 0x0bac2f92f4e952f57f89c892f7ee2f4d17d0048218fef412312854054d5a870f
- 0x5198a81040ce65a07930d05445b2007a6e18020e51056ac4846f4a483c0b6138
- 0x18443edc6e22f82df2b13e4486817ee2d9e48c0f8b9b865bcb3e54c49be01c85
- 0xe346324d65aa530400c9ecc902c11f5e776e069beda1d1ef9f60a9b6b80f7358
- 0x1e3d0e6f86a6efb162891f50a475c4d3117d71f222db4176e99cb485c624cb5d
- 0x4f8ffc96f312291be1af5503a1f50719fe908eb90072e688bff6453ea1f4bbed
- 0x8ecb8a2a82ac1cdbe71dadcceb250f92a19f382dcdd89f784e7e4fca6249fe8a
- 0x093577cc3103152dbae7a3e2746efa7cf14907771bf3a1d81b476910716da144
- 0x88e14554875d47fe3e9d547b6e116a59cb4b1bba1165fecb62ab9dc0789b5291
- 0x3bebef69be15ae49fdf78639d05bdb957a983cd3565294a33f1d0a8a41913db8
- 0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2
- 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
- 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae