← The evidence ledger
Evidence row 2201759
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://hacker-news.x402tookit.com/hn-top
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 54c5db41bdea4505082828cd134648905689db2994b19699f0b56aa0d7b1ed55
- Leaf
- 0x2ca83a2e8982e10b53a9c7bab5cbcfe36906a40d5ab472b835013edf23b7666d
What was observed
{
"endpoints": [
[
"x402",
"https://hacker-news.x402tookit.com/hn-top"
]
],
"name": "Hacker News",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Current Hacker News top, new, best, ask or show stories with score, comment count, domain and age (up to 15).",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 10,
"list": "top"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T00:39:19.776Z",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"list": "top",
"meanScore": 445.5,
"medianComments": 102.5,
"medianScore": 245.5,
"notChecked": [
"stories beyond the requested limit",
"flagged or dead stories that are hidden from the list",
"…1 more"
],
"reasons": [
"Order is the source's topstories order."
],
"requested": 10,
"returned": 10,
"source": "Hacker News (Firebase API and Algolia HN Search)",
"sourceUrl": "https://news.ycombinator.com",
"stories": [
{
"age": "6h",
"ageMinutes": 370,
"by": "pcai",
"comments": 273,
"discussion": "https://news.ycombinator.com/item?id=50170593",
"domain": "permit.petercai.com",
"id": 50170593,
"postedAt": "2026-10-20T18:29:09.000Z",
"rank": 1,
"score": 511,
"textPost": false,
"title": "SimCity, but with Permits",
"type": "story",
"url": "https://permit.petercai.com/"
},
{
"age": "2h",
"ageMinutes": 138,
"by": "Bender",
"comments": 14,
"discussion": "https://news.ycombinator.com/item?id=50173487",
"domain": "krebsonsecurity.com",
"id": 50173487,
"postedAt": "2026-10-20T22:21:05.000Z",
"rank": 2,
"score": 67,
"textPost": false,
"title": "Feds suspect ransom negotiator ran ShinyHunters extortion site",
"type": "story",
"url": "https://krebsonsecurity.com/2026/10/feds-suspect-ransom-negotiator-ran-shinyhunters-extortion-site/"
}
],
"summary": "10 top stories; highest score 2110 (\"DeepInfer: High-performance inference framework for DeepSeek models\"), median 245.5.",
"topDomains": [
{
"count": 3,
"domain": "github.com"
},
{
"count": 1,
"domain": "blogs.lse.ac.uk"
}
],
"verdict": "STORIES_LISTED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"limit": {
"description": "Stories 1 to 15 (default 10)",
"type": "integer"
},
"list": {
"description": "top (default), new, best, ask or show",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"list": {
"type": [
"null",
"string"
]
},
"meanScore": {
"type": [
"null",
"number"
]
},
"medianComments": {
"type": [
"null",
"number"
]
},
"medianScore": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"requested": {
"type": [
"null",
"number"
]
},
"returned": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"stories": {
"items": {
"properties": {
"age": {
"type": [
"null",
"string"
]
},
"ageMinutes": {
"type": [
"null",
"number"
]
},
"by": {
"type": [
"null",
"string"
]
},
"comments": {
"type": [
"null",
"number"
]
},
"discussion": {
"type": [
"null",
"string"
]
},
"domain": {
"type": [
"null",
"string"
]
},
"id": {
"type": [
"null",
"number"
]
},
"postedAt": {
"type": [
"null",
"string"
]
},
"rank": {
"type": [
"null",
"number"
]
},
"score": {
"type": [
"null",
"number"
]
},
"textPost": {
"type": [
"boolean",
"null"
]
},
"title": {
"type": [
"null",
"string"
]
},
"type": {
"type": [
"null",
"string"
]
},
"url": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"topDomains": {
"items": {
"properties": {
"count": {
"type": [
"null",
"number"
]
},
"domain": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:27:25.87Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T23:27:25.723Z"
},
"resource": "https://hacker-news.x402tookit.com/hn-top",
"serviceName": "Hacker News",
"tags": [
"hackernews",
"stories",
"top",
"news"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Current Hacker News top, new, best, ask or show stories with score, comment count, domain and age (up to 15)."
}What the leaf hashes
{"body":"54c5db41bdea4505082828cd134648905689db2994b19699f0b56aa0d7b1ed55","id":2201759,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808795965,"prev":null,"subject":"x402_bazaar:https://hacker-news.x402tookit.com/hn-top","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0x2ca83e634bfff142f7401481f8a37fb18c6828fcc93b034cb6280033b7e84d66
- 0x6d681f1f9e4c05770641d19266916c9187bb77bda93d6f44264dc48bccb7ac40
- 0x365772b73097721db6dc27526a0c8306ff46b6062b51b72b4678de1fb9f8ad06
- 0x7fef54a3f2a44eab455a0a31d4916287de04d836c3b5866bb31ec78627ff380b
- 0x030b22e3c7b3557031849002f9efaef6b4838844d453e4900d1bac11c32e4cbe
- 0x24b601942b7460d0ed76179c61cf003a06621958f08514da14896f4adf9ec89f
- 0xd4182ebd403eb5c8ccd1c580cff588da5ca4d1afa765cdc63024e61244d25d87
- 0x10360469b33ee60b1200181fedab448610040cdad190a74b0ca5d714afae1d69
- 0x13947754973c7fdd106e782e2129fabbc2d9f5a16af4112471bea0cfd8be10bb
- 0x81b4a81aafe9b0a82b665a104374ef825c6152eeaa8b07e0fb40d7534f477c22
- 0x2bd69db067e141defea23a9fdb004b1bd6b05d176db7b580c856e30ca4cb1eba
- 0xb428466fde94278d2667279c042debfdb8e243ad01fd69fdb5ab640b257ec942
- 0xdb8f582c0e06dcc12f31eb42bfcf649e95cea3ce20a525db7917ecfd954357bb
- 0x037a66c2ea899586d58b52761f6b950a97cda22bb80294e40013ebea171a684f
- 0x9cb76be6423133397c3da69f801d6af35dcce77b458aa17bd796c877ed7bc8fd
- 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
- 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af