← The evidence ledger
Evidence row 792573
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agents.crowdspark.me/v1/gov/federal-register
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- b155ebb7a4e1d9f1aba0cce2c9d3d0dfe8aca9c5bdedb2e1bc5d712ffecce734
- Leaf
- 0xe6234b2d64cfd36385d265c5d17f5cc5fcdc588aa28199b1f24f2267b898582c
What was observed
{
"endpoints": [
[
"x402",
"https://agents.crowdspark.me/v1/gov/federal-register"
]
],
"name": "Agent Tools",
"owner_address": "0x0dea0030a17bf886543a757c55924710258c2eec",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x0dEA0030A17BF886543a757c55924710258c2eec",
"scheme": "exact"
}
],
"description": "Search the US Federal Register: final rules, proposed rules, notices and presidential documents with title, agencies, publication date, effective date, comment deadline, docket IDs, abstract and links. Filter by keyword, type, agency slug and date range. Public domain data, no legal advice.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"from": "2026-09-01",
"limit": "3",
"q": "artificial intelligence",
"type": "proposed_rule"
},
"type": "http"
},
"output": {
"example": {
"documents": [
{
"agencies": [
"Treasury Department"
],
"comments_close_on": "2026-12-22",
"docket_ids": [
"Docket ID OCC-2025-0372"
],
"document_number": "2026-21706",
"effective_on": null,
"publication_date": "2026-10-23",
"title": "Example proposed rule",
"type": "Proposed Rule",
"url": "https://www.federalregister.gov/documents/2026/10/23/2026-21706/example"
}
],
"returned": 1,
"source": "federalregister.gov API (public domain)",
"total_matches": 42
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"agency": {
"description": "Optional agency slug, e.g. environmental-protection-agency",
"type": "string"
},
"comments_open": {
"description": "true to keep only documents still open for comment",
"type": "string"
},
"from": {
"description": "Optional publication date from, YYYY-MM-DD",
"type": "string"
},
"limit": {
"description": "1 to 20, default 10",
"type": "string"
},
"q": {
"description": "Optional keyword or phrase",
"type": "string"
},
"sort": {
"enum": [
"relevance",
"newest",
"oldest"
],
"type": "string"
},
"to": {
"description": "Optional publication date to, YYYY-MM-DD",
"type": "string"
},
"type": {
"description": "Optional document type",
"enum": [
"rule",
"proposed_rule",
"notice",
"presidential_document"
],
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-28T13:44:20.732Z",
"quality": {
"lastCalledAt": "2026-10-28T13:44:20.732Z"
},
"resource": "https://agents.crowdspark.me/v1/gov/federal-register",
"serviceName": "Agent Tools",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Search the US Federal Register: final rules, proposed rules, notices and presidential documents with title, agencies, publication date, effective date, comment deadline, docket IDs, abstract and links. Filter by keyword, type, agency slug and date range. Public domain data, no legal advice."
}What the leaf hashes
{"body":"b155ebb7a4e1d9f1aba0cce2c9d3d0dfe8aca9c5bdedb2e1bc5d712ffecce734","id":792573,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793211815735413,"prev":null,"subject":"x402_bazaar:https://agents.crowdspark.me/v1/gov/federal-register","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).
- 0xe62394cf2bfe3656137a3c64ef19602665c0ca6b66b27ccbf67c5b63b1b86451
- 0x4907915521cd9346fd95765288ae68ea3e53df8d3d5dac7a7a820f5933da52bd
- 0x58375dff84a77f144f4e48620a728d6f4be9e37decfaf9583062b0e4f2c70198
- 0x48deda76cdd140bfb01a9b63dbd697e2bfebd818e12fa5aac2809f47d5684c6f
- 0xd0746ff610bea90ae465ca1f804b86963dd8e61f94a33a6909096f784eec05e8
- 0x6c532d6345e0bf50aafaffe749050cf402062af5b7517b0ef47854da2cde6baa
- 0xa464dfe1877f4928b9287615d1cf55cf05b3afcd2d272df2a981d8bf4e4aaf4a
- 0xa98db9f3024d3407835174668927f30d9ccc66fe975674300173094ef1fdf3ca
- 0xcc419a63aafdc9fbd9aad7e8549e76c4e11649aa0c975114ba84a3c59499c06d
- 0xb71dc71c5861d32d52fd1d9ce6bc924a0c5243c29904f78e1a5af0d8ac1c5b16
- 0x91c6a792fafd9b5b74b20bd4512f3c9d2c17735538f95aa1a1a3fcf735d5ffae
- 0x1c566b2bc731a0bbe4bcefbee95c46c4142e9813b9c3e17150688fd4e40b858a
- 0x8e202856b78332619dae3c6afb7bc5d31594bfb3354dfda266c48b48219b0601
- 0xf43a767076988041f743c8dc00db52511a090e0e09c248c9cac00d7742dbc563
- 0x334629b51e7dfb2339fa4fd14202e288d70dbaccb3e5b04d2d5fb8f0d489ce5e
- 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
- 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
- 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae