← The evidence ledger
Evidence row 257539
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://serp402.com/api/v1/youtube-channel
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 1a3fab13801cc51e389959cef09794428836c930a74311687125e18d562596ad
- Leaf
- 0xacae113ded221e91fd1a26cc31b66b8baf7f3735ccf320240b4ff332cb4a528a
What was observed
{
"endpoints": [
[
"x402",
"https://serp402.com/api/v1/youtube-channel"
]
],
"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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
"scheme": "exact"
}
],
"description": "YouTube Channel: Video titles, links, thumbnails and more. 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": {
"about": "true",
"channel_id": "nasa"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"endpoint": "youtube-channel",
"meta": {
"latencyMs": 1400
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"about": {
"description": "Set to true to include additional channel information in channel_results , such as country , joined_date , total_views , and links . This triggers an extra…",
"type": "string"
},
"channel_id": {
"description": "YouTube channel identifier. Requests are faster when a raw channel ID is used.",
"type": "string"
},
"gl": {
"description": "country to use for the YouTube channel. It's a two-letter country code. (e.g., us for the United States, uk for United Kingdom, or fr for France)",
"type": "string"
},
"hl": {
"description": "language to use for the YouTube channel. It's a two or three-letter language code. (e.g., en for English, es for Spanish, or fr for French), optionally…",
"type": "string"
},
"next_page_token": {
"description": "next page token. It is used for retrieving the next page of channel videos. It should be a value of next_page_token from the search results.",
"type": "string"
},
"search_query": {
"description": "Parameter is used to search within a channel. Matching videos and playlists are returned in search_results .",
"type": "string"
},
"sort": {
"description": "sorting order. Available options depend on tab : videos / shorts / streams : latest - Latest (default) popular - Popular oldest - Oldest playlists : dd - Date…",
"type": "string"
},
"tab": {
"description": "channel content tab to retrieve. Available options: videos - Videos (default), returned in videos_results shorts - Shorts, returned in shorts_results streams…",
"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": "YouTube Channel 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/youtube-channel",
"scheme": "exact",
"validUntil": 1793029185,
"version": 1
},
"signature": "0x969865396184381c8716ca5ac4812d64f993c970241dc1131ad2b35056cb545357b40567f4afc65cdca3fd3e532d80a4d4b4cfa2de96f5c3fb4677776fd1dad21c"
},
{
"acceptIndex": 1,
"format": "eip712",
"payload": {
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
"resourceUrl": "https://serp402.com/api/v1/youtube-channel",
"scheme": "exact",
"validUntil": 1793029185,
"version": 1
},
"signature": "0x1712c6ba1b978903a11e70fe9323bb27eaa04d3b32bdcff3007b3bbd52b6c09d41ae9a4b951f65be99ed4bd0f2a9bb1264a995cc1b7a915b60998042e42c9c8e1c"
}
]
},
"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": "2026-10-26T15:37:45.777Z",
"quality": {
"lastCalledAt": "2026-10-26T15:37:45.777Z"
},
"resource": "https://serp402.com/api/v1/youtube-channel",
"serviceName": "serp402",
"tags": [
"video",
"youtube",
"channel",
"x402",
"agents"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "YouTube Channel: Video titles, links, thumbnails and more. 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":"1a3fab13801cc51e389959cef09794428836c930a74311687125e18d562596ad","id":257539,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793029766444894,"prev":null,"subject":"x402_bazaar:https://serp402.com/api/v1/youtube-channel","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).
- 0xacae137cfe48ae4521da3ee78d20902f43c05ac8284c54bf6a9113a5581944ec
- 0x299e4362dc42acc11512255fa9c8a539348717c8ae14e6f9cf4faa50d7c48a71
- 0xb9c43c6e7cb27085a50f6518c2cc524a3ad40123bdebd0ff4c94bd31f9732036
- 0x05dd87abc1c9a8effa4faae3f427adeef5baddddcf1efe3c52c957c7f7638304
- 0xc890123dd3837b0357f8909ea85af40ad566d41828c538a34ab9f343454b14ff
- 0x9471a3675c8a57d968e83bca95e04f7710124e3da4cbe4121d49cca05319c945
- 0x20c9b0ad5d74aee0047b3d6c0eafd5a1d35f0f405f331b9d754e73970839e6cb
- 0x64cc36d502007f14a747ebe8e921b1216df2396b85f4cf12d1c4e54a541cdf20
- 0xb0be30f405229590ad902862b4749794256eb98f321ccda090761a0eccaf2aad
- 0x937e8e9fb917c637f64525eb09f72a51d31db27c42e43480a2a8615042dc1fcb
- 0x3777e64f7ac9f40ae7e4f13404a570afc2a739656a377469485865c026d1c99c
- 0xb7fae69bb7bd717d54a83df961404a3e4de2a5cfbcfa013fd83a38627fe13f7e
- 0x4700d6dfdb40e52e2ceb8ffe62c75f3f708d23452f828255fd003d795f5d9d66
- 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae