← The evidence ledger
Evidence row 3206
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402.agentutility.ai/hacker-news-search
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 1e534e71405d36874ec58bab4f564937c5376932ca687c1cf32337e03ebf638c
- Leaf
- 0x1064b46213f6471c2ec307623ad261ff60aa4edddc5fba18211ada3f54a5b098
What was observed
{
"endpoints": [
[
"x402",
"https://x402.agentutility.ai/hacker-news-search"
]
],
"name": "AgentUtility.ai",
"owner_address": "0x6c0752c09e7f6fa6526fcdf40e456a159ebb5621",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "FJqAJ4dXkFbrp3EEo8E9x98iaBGUQwaU8Srz5ePfUXLH",
"scheme": "exact"
}
],
"description": "Search Hacker News for startup news, YC news, Show HN launches, and founder discussion through the Algolia HN index. Send a query, then filter stories, comments, or polls by author, minimum points, and ISO-8601 date range; sort by relevance or newest first. Returns titles, authors, points, comment counts, timestamps, URLs, and matching text. Use it as a startup news search API, YC news search, Show HN tracker, or developer news feed.",
"extensions": {
"bazaar": {
"discoverable": true,
"info": {
"input": {
"body": {
"limit": 5,
"query": "rust async"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"query": "rust async",
"results": [
{
"author": "boats",
"comments_count": 137,
"created_at": "2024-03-15T14:22:01.000Z",
"id": "39800000",
"points": 412,
"title": "Async Rust in three parts",
"url": "https://without.boats/blog/async-rust-3/"
}
],
"source": "https://hn.algolia.com/api/v1/search",
"total_hits": 4567
},
"type": "json"
}
},
"related": [
"/social-mindshare"
],
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"author": {
"description": "Filter to a specific HN username (e.g. 'pg', 'dang').",
"type": "string"
},
"limit": {
"description": "Max hits to return. 1-20. Default 10.",
"type": "number"
},
"min_points": {
"description": "Minimum points (upvotes) floor. Comments don't have points; using this implicitly filters to stories.",
"type": "number"
},
"query": {
"description": "Free-text search query (matches title, body, author, URL).",
"type": "string"
},
"since": {
"description": "Lower bound on created_at — ISO8601 date (YYYY-MM-DD) or full timestamp.",
"type": "string"
},
"sort": {
"description": "'relevance' (default, popularity-weighted) or 'date' (most-recent-first).",
"enum": [
"relevance",
"date"
],
"type": "string"
},
"type": {
"description": "Restrict to a single HN item type. Omit to include all types.",
"enum": [
"story",
"comment",
"poll"
],
"type": "string"
},
"until": {
"description": "Upper bound on created_at — ISO8601 date (YYYY-MM-DD) or full timestamp.",
"type": "string"
}
},
"required": [
"query"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"query": {
"type": "string"
},
"results": {
"items": {
"properties": {
"author": {
"type": "string"
},
"comments_count": {
"type": "integer"
},
"created_at": {
"type": "string"
},
"id": {
"type": "string"
},
"points": {
"type": "integer"
},
"title": {
"type": "string"
},
"url": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"source": {
"type": "string"
},
"total_hits": {
"type": "integer"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_awpbwsy3"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1783070352/bazaar-icons/54f004eda341546b.png",
"lastUpdated": "2026-10-26T02:32:06.635Z",
"quality": {
"l30DaysTotalCalls": 21,
"l30DaysUniquePayers": 8,
"lastCalledAt": "2026-10-26T02:32:03.274Z"
},
"resource": "https://x402.agentutility.ai/hacker-news-search",
"serviceName": "AgentUtility.ai",
"tags": [
"web-probe",
"hacker",
"news",
"search"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Search Hacker News for startup news, YC news, Show HN launches, and founder discussion through the Algolia HN index. Send a query, then filter stories, comments, or polls by author, minimum points, and ISO-8601 date range; sort by relevance or newest first. Returns titles, authors, points, comment counts, timestamps, URLs, and matching text. Use it as a startup news search API, YC news search, Show HN tracker, or developer news feed."
}What the leaf hashes
{"body":"1e534e71405d36874ec58bab4f564937c5376932ca687c1cf32337e03ebf638c","id":3206,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025271788204,"prev":null,"subject":"x402_bazaar:https://x402.agentutility.ai/hacker-news-search","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).
- 0x1064e3420be2c022387b5af83599a1e839be0e5e49792f479025c73dd5508300
- 0x1ca58b7def7544578b8602752721388bd27f8cc885fbfd895e84f9a7f60afb3a
- 0x69532d016d91532e93fdfbe5864cdbaeb9499e9aef4e1bee412f4f62f71d345d
- 0x17b95d4d18e3e1655807d23171e4a753443c08b393929bfd26990376dac21ae3
- 0x212cb3e826e0f13ca6b82b97fa097b3ebff01429bf07360f9d0f8a995ca756c3
- 0xa4a20c93c9abdaf8f93deb892eae7c4bc63ab48f5e68c0d7cb545c28a21f2eca
- 0xa2d535dd1c7083811742d7e7c1489c966fdaee8b2933943fe18cc13f41869c56
- 0x2eed16a742ffe120df0a1d3af583c684e2833418638ff4f08d431bdda2fd370d
- 0xc78969e1448b4e00b22c1b3dc7e51f8123c9e7092baaaedc96ecfaebe34d69e7
- 0x966bf10795d50c9f81eb3c272b7279beecfe723480c50bbb3c87bcd23b5cd5b5
- 0x27ff2940d5376ec3cc70015c126b688bae838938b2846686279ceb190eb69456
- 0xc02d9eff6ef94d46d90d54320548f18fc3f05787047265548577569253c19969
- 0x294f7935f78a896b5f246a7c9a7ee1b023720acdb03fff3cd549c63479848ec9
- 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae