← The evidence ledger
Evidence row 749807
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402.agentutility.ai/hacker-news-search
- Recorded
- Previous row
- #525317
- Body SHA-256
- 85d4cc7707dc4ba749a40202edc3342a548260d19a4bb6340aebffefac0edc39
- Leaf
- 0x866ad279a493c0c66a226d4f457ca1efa837c4f4a7c43eee85eafb2a7adcb4ed
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": "2026-10-28T03:19:40.898Z",
"quality": {
"l30DaysTotalCalls": 23,
"l30DaysUniquePayers": 10,
"lastCalledAt": "2026-10-28T03:19:33.322Z"
},
"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":"85d4cc7707dc4ba749a40202edc3342a548260d19a4bb6340aebffefac0edc39","id":749807,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178665653923,"prev":525317,"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 (231336 rows).
- 0x866aa8838981fc631cf47303b5ea0e05887b6b394f99941ca43f3a0f57d02a12
- 0x0bd773aba2a9992f3a7b53f2e104841c7c0a1b8f00efe9f60f8810acb57c201f
- 0x5c4ecd38625dad5089a58b7538a068815a3d9ac07dc9ab01aa82cf279e41f133
- 0x7dcfe532e320677d8b1c6d55b0d64151b1f130f3ea9c038b0433cd8216c334f0
- 0x9c8d746460a9259b67846d48951c7d3a522bd6d99e31f63696812bc4c82e3c10
- 0xcc985edc7c6a55bf0961f1a293a13dd5790c79769bbb2a3cd990a42134b9f9d9
- 0xf439de109e349e7d0b4c910e995abc00f62381dd5341d4505774f6feff04142f
- 0x95ff35af8f25ddbd55e65895a77c0f30ff9daa0deefb5f9c33393c53dfd57f3e
- 0x4795f3794f53c3ce2f5e2a31e7702a74ba199146f310737056eadaa794899eb9
- 0x0dce071d5d474142bac9799884f060e0f9e03a061e9d23332d0b9f2d678a012a
- 0x8baa84438844480e4ee85191a514de151ac6e3130f3e0168f008268ec0f9b588
- 0x957e0fe7e44c7e977b527d6154fa62586de112339e5f55ca34172d17b3a46c4d
- 0xb072324629a406cd3cdd7c16d50237ad36e849cb87524d54ccd21e2d2c94de51
- 0x91b395e5953edc1b4bb2db979b59b2d9a20f0df47d841196dccdb5128537aaaa
- 0xe2f9c120d14f36fdddf9b4e605c5d0b8a13b835e2380472255dc22e14b93e84e
- 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
- 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
- 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae