← The evidence ledger
Evidence row 451188
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402.agentutility.ai/hacker-news-search
- Recorded
- Previous row
- #3206
- Body SHA-256
- ffd9d62a1960ee1a92f7c429b55998f0b574f21a6ee4d1074bf322140a4dde01
- Leaf
- 0xc15a55ebefcfbdc0f39453858573ec259f3e9c545118fcea44997cfc5f95755d
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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"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": "2026-10-27T09:46:03.798Z",
"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":"ffd9d62a1960ee1a92f7c429b55998f0b574f21a6ee4d1074bf322140a4dde01","id":451188,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100487709302,"prev":3206,"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 (273461 rows).
- 0xc15a8b3d57a856985589c8351c4f4c3e844f2b93613c0383be909d309cb921a8
- 0x7f638bb0da9bb0b7c52b6cbf96384eef63b5be8306484807631b00bcd9f57bd5
- 0x829cc21e5838e78498037d3c702ed562c9c1426a4448abcdcf0864f488bdb14b
- 0xe4ab370e1e31bbe03bf54bca91542c094363b6cb97691f309503247b8242e679
- 0x8b236450cd64ab8d6daab718ee956240e1e3146d105be6f08cd3f07646cbd67e
- 0x685ba9de91de74766e33bd8e00bbb145318e1049df1c2de5f754da0b3fdc4f0d
- 0xf92e6e3f3dfb3c15abf0abb0f56b6f79d19ec6ac42580b36f8b954e91994b675
- 0x78a463cf09148267b10ef524d1a8d93ad78ffda8f1a7f071dc01a5ef472db2a8
- 0x541a393926f1ac9763f10e22d98d781509fd82f0510ca816b28bd2cfc146941e
- 0x4ad2073b6d060aec55c09d199990b7db63b4239e653699d60c64726663e6c134
- 0x5a13fca65d8a7a99a0b9f7a1e93e4c0383a76a0fdbe04d70632715947f716ff4
- 0xf60d24675361c4e691254e637b8ecddfc4470b91e0ce8ab4c088e46b7460f7f1
- 0xb48b088603004f0a5232faea4acd65999cbb4832f4c15b0098e853144cb91655
- 0x077edf0f29e2a3aa19c876439830696b88f0236fd0b2a3c43c76f38cdd29bb2b
- 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
- 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
- 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4