← The evidence ledger
Evidence row 407477
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
- #118472
- Body SHA-256
- c49aa3c66302869febde7b8aed497669fab03563405455851febc69da278dc97
- Leaf
- 0xd389a160f0cbc7a5045a39eb6edf4466cfa2e87ba859a4340a1ebcb7956f88e6
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": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-17T13:17:59.417Z"
},
"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":"c49aa3c66302869febde7b8aed497669fab03563405455851febc69da278dc97","id":407477,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080248920238,"prev":118472,"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).
- 0xd389129b87d4ca177fb8c7ac1d982833978f39037c8d5d0f378007ab9a977da4
- 0x89dfef6569e9ec076d4e6fd7ff86237f68c22fd3cac830cefae0cc941ebb4331
- 0x3ace1803b1115ec721078362fe2fc881586e4c59c762ca309d53b94a5a1cc1b3
- 0x0c2df0dca95d1739087a075580b5d730ac665f1a22fc7e4e599d738cc92cf41b
- 0x3220168ed5aead98da01732e4acb27d5f17b3df3e3ee891b1f41712d712759f1
- 0xaf7da63831d2106ec52f80327592950e2cdd4e675087e68af6654ab32b552aaa
- 0x3692986ce8a91b808fa3364db123c715b5d0047086326a25a2c56c06480e69d2
- 0x2098badedb202869bf9ae68af146704951797f3452ef29bb38905fc11336f01f
- 0x5d324f64a6b39edeb4255d303b66fdfba1c6e456186c5c388a96cb5602877c44
- 0x40ea8ccc68fb77b852fbe8897febf428da44417e74f64bf33c21c6a86d5b62c4
- 0xfffb2250987be2ab1e65ada5e7362185183c6bbed9d78650d53d2ffb2c007dd0
- 0xba42125112c82614fda070baa3201b37bda47b7485d074641cdd174984f8ddaf
- 0x3b3e4fecead12aaf883ab4f21b6e21efddd0a8d055ced058cb62bcdca8a6c9d6
- 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
- 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
- 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
- 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4