← The evidence ledger
Evidence row 279240
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://serp402.com/api/v1/duckduckgo-light
- Recorded
- Previous row
- #266168
- Body SHA-256
- 8dfaf516e807d3d1aae3c168bbf6eab86c83d412fec1198c8852ad0f6eae294c
- Leaf
- 0xec2ecacd09ca93de311b6709ce5036775389f5a53ee76e773abe97c1a375ef81
What was observed
{
"endpoints": [
[
"x402",
"https://serp402.com/api/v1/duckduckgo-light"
]
],
"name": "serp402",
"owner_address": "0xaa1252d726567293cffe6ca495e32c6aecfdc56d",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
"scheme": "exact"
}
],
"description": "DuckDuckGo Light: Access the world's fastest DuckDuckGo Search API. Scrape DuckDuckGo search results in JSON format automatically using custom parameters. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"q": "Coffee"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"endpoint": "duckduckgo-light",
"meta": {
"latencyMs": 1400
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"df": {
"description": "results filtered by date. It can be set to: d : Past day, w : Past week, m : Past month, y : Past year, or you can pass a custom date following the next…",
"type": "string"
},
"kl": {
"description": "region to use for the DuckDuckGo search. Region code examples: us-en for the United States, uk-en for United Kingdom, or fr-fr for France. Head to the…",
"type": "string"
},
"next_page_token": {
"description": "next page token. It is used for retrieving the next page results. 15 results are returned per page.",
"type": "string"
},
"q": {
"type": "string"
}
},
"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": {
"additionalProperties": true,
"description": "DuckDuckGo Light results as structured JSON. The shape follows the source, so fields differ between endpoints; identifiers and routing belonging to the collection layer are stripped.",
"properties": {
"attribution": {
"description": "Where the data comes from and what was done to it. Keep it with the results if you pass them on.",
"type": "object"
},
"endpoint": {
"description": "Which endpoint answered.",
"type": "string"
},
"meta": {
"description": "How long the call took.",
"type": "object"
},
"paid": {
"description": "The settled transaction and network.",
"type": "object"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"offer-receipt": {
"info": {
"offers": [
{
"acceptIndex": 0,
"format": "eip712",
"payload": {
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "eip155:8453",
"payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
"resourceUrl": "https://serp402.com/api/v1/duckduckgo-light",
"scheme": "exact",
"validUntil": 1793028665,
"version": 1
},
"signature": "0x6c870588a7aaed8568e493fa6e84c184276ad33316c55afdd34ebe75fae3f8ba0fed05d56fc9842cc71c1106a91f2cdfcdcb57802f3202be1a52ed168178a8f41c"
},
{
"acceptIndex": 1,
"format": "eip712",
"payload": {
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
"resourceUrl": "https://serp402.com/api/v1/duckduckgo-light",
"scheme": "exact",
"validUntil": 1793028665,
"version": 1
},
"signature": "0xdbb00274c7bf26a5a8bb64c637df21a459448a994693a75c47f51283c26ca7e52bb8a7198cc66bccd775ea8ea6817be780df5fd25be1064dbee4e34a22f9d0d61c"
}
]
},
"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": "2026-10-26T15:29:05.771Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T15:29:05.617Z"
},
"resource": "https://serp402.com/api/v1/duckduckgo-light",
"serviceName": "serp402",
"tags": [
"search",
"duckduckgo",
"light",
"x402",
"agents"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "DuckDuckGo Light: Access the world's fastest DuckDuckGo Search API. Scrape DuckDuckGo search results in JSON format automatically using custom parameters. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners."
}What the leaf hashes
{"body":"8dfaf516e807d3d1aae3c168bbf6eab86c83d412fec1198c8852ad0f6eae294c","id":279240,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042182563522,"prev":266168,"subject":"x402_bazaar:https://serp402.com/api/v1/duckduckgo-light","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).
- 0xec2eb6e71d8c642ccc1dd155d3d2c71d942b0094d27146f9392616a9f4a9a965
- 0x5070f36eaa2bb08c4985b9d770a9bdc1f7cf3aaa34b5b7cd404eca1cd283d96a
- 0x8fd7851d89c73208b2426b9f438935a8602635a322d898374a9c161938408002
- 0xe119d45ce5d001aa0b7f45c2c7b897c8ea78834761394b6ffe5500cd68cfbe2a
- 0x50b710713d44ed4e11232af0c0aa8a93576bf9bd66ad43713df2916e15970364
- 0x5e8c3fd5c4b2a94193b7da72c8c4631ae686640b5242f950ecc81a3cd14526f2
- 0xefbd751963b179747397c08d796e05e2127a37d2ce343ddfda28934fb89454b5
- 0x56e97eed2ac006fdb81569d3ef93cede631c9e8e75542c648147f25cc10d9afe
- 0x4464dd2061ec013e7d53cd23da45888e7a5a0035928643b6d04cb9f53ece872a
- 0x0e6847189b6b941d0233f67c69f0c32e1b6794611c654d5a10f2587ccfc1b873
- 0x94e3a06f6e015a8e8a8a7e2c73991edf3f9ceb9ff83b85412d31c39f3e9bc8c1
- 0x4bac6365a3676c613d57c80f4d4f617e583205074db24f3dec4d2ed4939a26e6
- 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
- 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
- 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae