← The evidence ledger
Evidence row 121180
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://serp402.com/api/v1/search
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- eb9739a393c204a150b62f68b9db28105627f7f236c1733ea92b00a3c1cb74c9
- Leaf
- 0x25d2ab1ea8521799a32a26bcfe1db77bda0d3567d93298f65cfc1ce732eec0e4
What was observed
{
"endpoints": [
[
"x402",
"https://serp402.com/api/v1/search"
]
],
"name": "serp402",
"owner_address": "0xaa1252d726567293cffe6ca495e32c6aecfdc56d",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
"scheme": "exact"
}
],
"description": "Google search for agents, paid per call: web, news, images, videos, places, shopping, Scholar and patents, all returned in one shape with canonicalised URLs, duplicates removed and dates normalised to ISO. Direct answers and knowledge-panel facts included when Google has them. USD 0.01 per call in USDC — no API key, no account, no subscription, no minimum. Results are retrieved through Serper (serper.dev), which is not affiliated with or endorsed by Google.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"country": "us",
"language": "en",
"num": 10,
"query": "best espresso machine 2026",
"type": "search"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"answer": {
"source": "https://example.com/guide",
"text": "The Breville Bambino Plus is the most recommended entry model."
},
"entity": null,
"latencyMs": 1100,
"meta": {
"credits": 1,
"duplicatesRemoved": 1,
"returned": 10
},
"query": "best espresso machine 2026",
"related": [
"best espresso machine under 500"
],
"results": [
{
"position": 1,
"publishedAt": "2026-09-12",
"publishedLabel": "Sep 12, 2026",
"site": "example.com",
"snippet": "We tested eleven machines…",
"title": "The best espresso machines of 2026",
"url": "https://example.com/guide"
}
],
"type": "search"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"country": {
"description": "Two-letter market, e.g. us, it, de.",
"maxLength": 2,
"minLength": 2,
"type": "string"
},
"freshness": {
"description": "Only results from the last day/week/month/year.",
"enum": [
"day",
"week",
"month",
"year"
],
"type": "string"
},
"language": {
"description": "Two-letter result language, e.g. en, it.",
"type": "string"
},
"location": {
"description": "City-level location for the query, e.g. \"Milan, Italy\".",
"type": "string"
},
"num": {
"description": "How many results, up to 10 — one paid call is one page. Default 10.",
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"page": {
"description": "Which page of results. Each page is its own paid call. Default 1.",
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"query": {
"description": "What to search for.",
"maxLength": 400,
"minLength": 1,
"type": "string"
},
"type": {
"description": "Which Google search: web (search), news, images, videos, places, shopping or scholar. Default search.",
"enum": [
"search",
"news",
"images",
"videos",
"places",
"shopping",
"scholar",
"patents"
],
"type": "string"
}
},
"required": [
"query"
],
"type": "object"
},
"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": {
"answer": {
"description": "Google's own direct answer for the query, when it has one, with the page it came from.",
"type": [
"object",
"null"
]
},
"attribution": {
"description": "Where the data comes from. Keep it with the results if you pass them on.",
"type": "object"
},
"entity": {
"description": "Knowledge-panel facts about the thing the query names, when it names one.",
"type": [
"object",
"null"
]
},
"latencyMs": {
"type": "integer"
},
"meta": {
"description": "Results returned, duplicates removed, upstream credits spent.",
"type": "object"
},
"paid": {
"description": "The settled transaction and network.",
"type": "object"
},
"query": {
"type": "string"
},
"related": {
"items": {
"type": "string"
},
"type": "array"
},
"results": {
"description": "Every search type in one shape. URLs are canonicalised (tracking parameters, AMP and www stripped) and duplicates removed.",
"items": {
"properties": {
"extra": {
"description": "Per-type fields: price and seller for shopping, address, rating and coordinates for places, publication and citedBy for scholar, duration and channel for videos, imageUrl for images.",
"type": "object"
},
"position": {
"type": "integer"
},
"publishedAt": {
"description": "ISO date, normalised from whatever the source reported.",
"type": [
"string",
"null"
]
},
"publishedLabel": {
"description": "The date as the source reported it.",
"type": [
"string",
"null"
]
},
"site": {
"type": [
"string",
"null"
]
},
"snippet": {
"type": [
"string",
"null"
]
},
"title": {
"type": "string"
},
"url": {
"type": [
"string",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"type": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"offer-receipt": {
"info": {
"offers": [
{
"acceptIndex": 0,
"format": "eip712",
"payload": {
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "eip155:8453",
"payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
"resourceUrl": "https://serp402.com/api/v1/search",
"scheme": "exact",
"validUntil": 1792947028,
"version": 1
},
"signature": "0x82d34aba95867ee86debe11ac0ef91b7b15ba47d03168846ca72e363a1ff7f5202718a51225911656b568f98c83ec1a87a27143daa031a66d2514ae9c05c3a5c1b"
},
{
"acceptIndex": 1,
"format": "eip712",
"payload": {
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
"resourceUrl": "https://serp402.com/api/v1/search",
"scheme": "exact",
"validUntil": 1792947028,
"version": 1
},
"signature": "0xa7d1da707e3dee1f3b8350d3d820f5de8410eaed88cc0119ada8704e59acb8271c9721b220d1c436a614993b55ac178b249511b37617f20c31174229cc9ab2671c"
}
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"offers": {
"items": {
"properties": {
"acceptIndex": {
"type": "integer"
},
"format": {
"type": "string"
},
"payload": {
"properties": {
"amount": {
"type": "string"
},
"asset": {
"type": "string"
},
"network": {
"type": "string"
},
"payTo": {
"type": "string"
},
"resourceUrl": {
"type": "string"
},
"scheme": {
"type": "string"
},
"validUntil": {
"type": "integer"
},
"version": {
"type": "integer"
}
},
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"type": "object"
},
"signature": {
"type": "string"
}
},
"required": [
"format",
"signature"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"offers"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T16:48:28.959Z",
"quality": {
"l30DaysTotalCalls": 372,
"l30DaysUniquePayers": 9,
"lastCalledAt": "2026-10-25T16:48:28.564Z"
},
"resource": "https://serp402.com/api/v1/search",
"serviceName": "serp402",
"tags": [
"search",
"google",
"serp",
"web-search",
"news"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Google search for agents, paid per call: web, news, images, videos, places, shopping, Scholar and patents, all returned in one shape with canonicalised URLs, duplicates removed and dates normalised to ISO. Direct answers and knowledge-panel facts included when Google has them. USD 0.01 per call in USDC — no API key, no account, no subscription, no minimum. Results are retrieved through Serper (serper.dev), which is not affiliated with or endorsed by Google."
}What the leaf hashes
{"body":"eb9739a393c204a150b62f68b9db28105627f7f236c1733ea92b00a3c1cb74c9","id":121180,"kind":"listing","method":"baseline/1","observed_us":1793025619438573,"prev":null,"subject":"x402_bazaar:https://serp402.com/api/v1/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).
- 0x25d2b785e0851aeebc80322004baa17a94733c908ea8d6f4a74fa97fcd6a4328
- 0x0b388aaa763109ec3d3b3d907da5a41b782d9161bc49e391dff5e0943da219da
- 0xfad6190966b58e372a7c6920fae617467efd1f85f6701b84faafe41229cfd034
- 0x16faf434141d212bc7cf776670a368976c64bceed87e05d762874e0c49ddc313
- 0x84c59f9b3d90098b871f0ad7e2766f7778232025881b9768edbb2df557bf7ee3
- 0x4c680748cde6fab0d2511fe1a3417d3d7c0c3573496bdece2d3e82470c552524
- 0xe4dd1bd210871045df635a76b2af6713bd789056ac27630901b8a24e8eb11d3e
- 0xdadd0a212ca550af8b1a51051930b9396daf5f08ff35b78745de718d7a1b9799
- 0x01472aece09dd6db6502873c29462eed9d62909152a59a5aea21c1c1a6757c03
- 0x21a7cf99ef81ffd43b25c97835cc100421f018b92fa922aa035d34db9079e57c
- 0xd59298b1ed461f406932ca0ca85948982d67f90463e31e5b2c45ab2a35eacd3f
- 0x266d991b0a994042474d2789bd5d3ba2433a122ae3c1027e2ccd7c0f4cf63071
- 0x830b2c874449c7499489eba2baa67d49f991298225763c0161b471621038d0fb
- 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae