← The evidence ledger
Evidence row 2201761
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://hacker-news.x402tookit.com/hn-item
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 4936fd8a1db0c6e1fb3e8eed309765020fae79de64ccc333777e48a922cadd74
- Leaf
- 0x1afd8cf9c6cc5c9db2defccfa1c0185aece5d8d77fe8682c8d2bf99a676a4818
What was observed
{
"endpoints": [
[
"x402",
"https://hacker-news.x402tookit.com/hn-item"
]
],
"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": "Summarise a Hacker News item and its comment tree: comment count, depth, authors and top comments, truncated.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"id": 8863,
"top": 3
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T00:39:16.365Z",
"by": "dhouston",
"comments": 71,
"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.",
"discussion": "https://news.ycombinator.com/item?id=8863",
"domain": "getdropbox.com",
"id": 8863,
"maxDepth": 5,
"notChecked": [
"comments newer than the search index",
"deleted and dead comments (they are not in the tree)",
"…1 more"
],
"points": 104,
"postedAt": "2007-04-04T19:16:40.000Z",
"reasons": [
"Top comments are in the source's own order (top-level replies, ranked by the site)."
],
"source": "Algolia HN Search (items endpoint)",
"sourceUrl": "https://hn.algolia.com/api",
"summary": "\"My YC app: Dropbox - Throw away your USB drive\" by dhouston: 71 comments, depth 5, 41 authors, 104 points.",
"textExcerpt": null,
"title": "My YC app: Dropbox - Throw away your USB drive",
"topComments": [
{
"by": "dhouston",
"excerpt": "oh, and a mac port is coming :)",
"id": 8865,
"postedAt": "2007-04-04T19:22:55.000Z",
"replies": 1
},
{
"by": "zaidf",
"excerpt": "This has great potential! Only suggestion I would have is go slower on the demo. I know you lost me very early into it switching between windows. If you are looking for a wider audience than those who…",
"id": 8869,
"postedAt": "2007-04-04T19:36:20.000Z",
"replies": 2
}
],
"topLevelComments": 32,
"type": "story",
"uniqueCommenters": 41,
"url": "http://www.getdropbox.com/u/2/screencast.html",
"verdict": "ITEM_SUMMARISED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"id": {
"description": "Item id, e.g. 8863 (the number in news.ycombinator.com/item?id=)",
"type": "integer"
},
"top": {
"description": "Top-level comments to excerpt, 0 to 10 (default 5)",
"type": "integer"
}
},
"required": [
"id"
],
"type": "object"
},
"type": {
"const": "http",
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}
},
"required": [
"type",
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],
"type": "object"
},
"output": {
"properties": {
"example": {
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]
},
"by": {
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"null",
"string"
]
},
"comments": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"discussion": {
"type": [
"null",
"string"
]
},
"domain": {
"type": [
"null",
"string"
]
},
"id": {
"type": [
"null",
"number"
]
},
"maxDepth": {
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"number"
]
},
"notChecked": {
"items": {
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},
"type": [
"array",
"null"
]
},
"points": {
"type": [
"null",
"number"
]
},
"postedAt": {
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"string"
]
},
"reasons": {
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},
"type": [
"array",
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]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"textExcerpt": {},
"title": {
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"null",
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]
},
"topComments": {
"items": {
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]
},
"excerpt": {
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]
},
"id": {
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]
},
"postedAt": {
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]
},
"replies": {
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"null",
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]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"topLevelComments": {
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]
},
"type": {
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"null",
"string"
]
},
"uniqueCommenters": {
"type": [
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"number"
]
},
"url": {
"type": [
"null",
"string"
]
},
"verdict": {
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"null",
"string"
]
}
},
"type": "object"
},
"type": {
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}
},
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}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:27:19.607Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T23:27:19.33Z"
},
"resource": "https://hacker-news.x402tookit.com/hn-item",
"serviceName": "Hacker News",
"tags": [
"hackernews",
"thread",
"comments",
"item"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Summarise a Hacker News item and its comment tree: comment count, depth, authors and top comments, truncated."
}What the leaf hashes
{"body":"4936fd8a1db0c6e1fb3e8eed309765020fae79de64ccc333777e48a922cadd74","id":2201761,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808804451,"prev":null,"subject":"x402_bazaar:https://hacker-news.x402tookit.com/hn-item","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).
- 0x1afd31cfcf908ecf5d6b7b40cdf8341f61da25fcfc684270abca97748ce56f84
- 0x40f3ba9709cb6cf9f7fdb2864a1d8f51b384940414dcac001258b5e0f1ac5c5b
- 0x87fdf7a68b0c59d7a02be382e17b27a61a6de6983e5e2c249ec7f8e5b5daff67
- 0x234f6dece4a22a142586c50714db503fa93958bf9aaedba7c8db96bbebc0f0b7
- 0xce6c268bad6f4068c54b4fdfc7cfd36be3903caff816721f43993d403939e05e
- 0x45094c76acd3a791fb281d2b3a56070389740d878bca4dcf7bb6c63c3d9d49b0
- 0x8dc7925db7bb127d1541d849bce50b59ee4073d01e1548d2173c094f80d0d89a
- 0x5936f63ee9e279aa729bc87e06c412252b85578c9bf1e1f1fd020db1380a9704
- 0x2cf4156e833734129439ac05d3979621559370e7dbf7433e8bcd0f9670e8e384
- 0x1db6bb17c0a698a2bb8a1cb63a54c29afdf0ed5427c25c8c6929882fe576d404
- 0xf61a5e72c1d0af5f7488716896d1d925ed659239c54a6a76ea8567adddbae8b9
- 0xaa8e703c8f7834bfb7f573073b9b50c4721ac0f323b8e4b35b227e9b1b763617
- 0xe2dd127d9ccc5339e1d044fef0fe0ebbce9fefdedc7bf9fb2070bf570a64799e
- 0xad8410fe2298c1ccff00c301cabf57d2495acf6e614e5236bbeb834747908ca4
- 0xb6470417fdb2a0e3de9c1abb1722cbc88bc0dfb5afda0a77e1eac26ab1683ece
- 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
- 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af