← The evidence ledger
Evidence row 425272
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://perp-gap-api.perpgap.workers.dev/pm/scan
- Recorded
- Previous row
- #407477
- Body SHA-256
- d04ecbe9998d9bf9f6043a7e97ad66528e6e78e9d92e6584ab0731c2f4a63827
- Leaf
- 0x38274a081ecbddcd07f966b5a6c49fd33ba54317507c2faa00a479c7ffc0762a
What was observed
{
"endpoints": [
[
"x402",
"https://perp-gap-api.perpgap.workers.dev/pm/scan"
]
],
"name": "Perp Gap API",
"owner_address": "0x2d82dcb9cc3a168d9ab25b62c1e33e278a51254f",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0x2d82dcB9cC3a168d9Ab25b62C1E33E278A51254F",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "5MoL8HNnvZUogGrqiF4T1StmAUpdU7ERA2GUJ7gLrEja",
"scheme": "exact"
}
],
"description": "Use when an agent wants the most mispriced liquid Hyperliquid prediction markets right now in one call. Ranks crypto and tokenized-stock binary price markets by edge: model probability from the live perp and 7d realized vol vs bid/ask, edge in pp, spread, depth and book age; empty and illiquid books are filtered. 400/404 are free, never charged. Errors: 400, 402, 404, 502. Data, not advice.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"max_spread_pp": "10",
"min_edge_pp": "2"
},
"type": "http"
},
"output": {
"example": {
"cache_updated_iso": "2026-10-22T21:35:12Z",
"count": 10,
"disclaimer": "Data, not financial advice. Not an offer or solicitation; Hyperliquid outcome markets are not available to US or othe...",
"filtered_out_empty_books": 74,
"filtered_out_illiquid": 30,
"filters": {
"kind": "all",
"limit": 20,
"max_spread_pp": 10,
"min_depth_usd": 50,
"min_edge_pp": 2
},
"generated_at_iso": "2026-10-22T21:41:36Z",
"label": "data, not advice",
"matched": 10,
"median_book_age_s": 1270,
"method": "P(S_T > K) under a lognormal model with zero drift, S = live Hyperliquid perp mid, sigma = 7-day realized vol from Hy...",
"rows": [
{
"asset": "COIN",
"kind": "stocks",
"outcome": 15810,
"perp": "xyz:COIN",
"question": "COIN above 155 at 2026-10-30 13:35:00 UTC",
"strike": 155
}
],
"scanned": 128,
"source": "Hyperliquid info API (outcomeMeta, l2Book, allMids, candleSnapshot)",
"spot_live": true
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"asset": {
"description": "Optional underlying filter.",
"type": "string"
},
"kind": {
"description": "Optional: crypto, stocks or all.",
"enum": [
"crypto",
"stocks",
"all"
],
"type": "string"
},
"limit": {
"description": "Optional max rows.",
"pattern": "^[0-9]{1,3}$",
"type": "string"
},
"max_spread_pp": {
"description": "Optional maximum bid/ask spread in pp.",
"pattern": "^[0-9.]+$",
"type": "string"
},
"min_edge_pp": {
"description": "Optional minimum edge in percentage points (default 2).",
"pattern": "^[0-9.]+$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"description": "Error responses are JSON {error: string, hint?: string}. 400 bad params (never charged); 402 payment required; 404 ticker/market not listed (checked before settlement, never charged); 502 upstream error. Full field docs: /openapi.json.",
"properties": {
"cache_updated_iso": {
"type": "string"
},
"count": {
"type": "number"
},
"disclaimer": {
"type": "string"
},
"filtered_out_empty_books": {
"type": "number"
},
"filtered_out_illiquid": {
"type": "number"
},
"filters": {
"type": "object"
},
"generated_at_iso": {
"type": "string"
},
"label": {
"type": "string"
},
"matched": {
"type": "number"
},
"median_book_age_s": {
"type": "number"
},
"method": {
"type": "string"
},
"rows": {
"type": "array"
},
"scanned": {
"type": "number"
},
"source": {
"type": "string"
},
"spot_live": {
"type": "boolean"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-27T04:33:09.591Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-27T04:33:09.43Z"
},
"resource": "https://perp-gap-api.perpgap.workers.dev/pm/scan",
"serviceName": "Perp Gap API",
"tags": [
"Trading",
"Data",
"Prediction Markets",
"hyperliquid",
"arbitrage"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Use when an agent wants the most mispriced liquid Hyperliquid prediction markets right now in one call. Ranks crypto and tokenized-stock binary price markets by edge: model probability from the live perp and 7d realized vol vs bid/ask, edge in pp, spread, depth and book age; empty and illiquid books are filtered. 400/404 are free, never charged. Errors: 400, 402, 404, 502. Data, not advice."
}What the leaf hashes
{"body":"d04ecbe9998d9bf9f6043a7e97ad66528e6e78e9d92e6584ab0731c2f4a63827","id":425272,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086108754311,"prev":407477,"subject":"x402_bazaar:https://perp-gap-api.perpgap.workers.dev/pm/scan","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).
- 0x38273f4f77513d566bf9c3272dc2b3f10578a7bacaa3accc31972ea488400009
- 0x8e5d07b604866606de8798f972ce7827385816b0876000b43c7447d5e8845426
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- 0xdbcf7dba6fe1433a537257f13b1bb625b06816b30a39d085beb9a955d38109a5
- 0xa391e944d9dc0d1e185a7cfe17f0c497e6482488b576bab4b5f2993ac5ae288b
- 0xb1e3df4c948912a5d4ec82a084261b9b83826c6176ba13a14ae5cbe792fb601f
- 0xe80379770c3035a94a448f10f546e25403d24f4c809901e6912980e24982051d
- 0x5abe8263908ba23b07466a2e695aa8ae329a972570160c736c1c75cf80a0ad59
- 0x6bd099c3af901e316a855c1a967ad3a3c53e03395fb78a5b5d00b633aaff55f4
- 0x4d02885c426a5643d6eaa02b71a8ac16cd2cbc5c1e818b230f8d8610157cba05
- 0xa68b83bee31b674e2a75c182ac7153fa7260e48329b079cb30f4c3ff78a7ebff
- 0x5ad46fa78d79ba6d76c322cad1bc48cbf0c26dc875ba94214d44c9d3c0b36673
- 0x5a6a2d80130a2a2e783e8f8096057d594b53c7bc148344100f2c40afa809745f
- 0x42784d9809d120654630ee1b254a1dd90a2bbd3024aa180f1a59bbf53e9316e4
- 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
- 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
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- 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4