← The evidence ledger
Evidence row 121908
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://stack.halowerk.com/stack/articles/youtube-embed
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5c167ace2e057e80f85cf94f5ff416a1e04814c0fafd811588314d5ff9cc701c
- Leaf
- 0x88cf8d17833df14f4a0591bb746b542c7ea0981866c670889156aa0520570c7f
What was observed
{
"endpoints": [
[
"x402",
"https://stack.halowerk.com/stack/articles/youtube-embed"
]
],
"name": "Tech Detect",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"asset": "USDC",
"assetTransferMethod": "eip3009",
"eip712Domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"name": "USD Coin",
"network_name": "Base Mainnet",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Purpose-bound YouTube embed observation (media) using the existing fresh Stack-Monitor. Returns stack_youtube_embed_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. One public HTTPS root domain, up to150 baseline technologies; 9s time",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com/"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"previous": {
"additionalProperties": false,
"properties": {
"observed_at": {
"maxLength": 40,
"type": "string"
},
"technologies": {
"items": {
"additionalProperties": false,
"properties": {
"category": {
"maxLength": 80,
"type": "string"
},
"name": {
"maxLength": 150,
"type": "string"
},
"version": {
"maxLength": 80,
"type": [
"string",
"null"
]
}
},
"required": [
"name",
"category",
"version"
],
"type": "object"
},
"maxItems": 150,
"type": "array"
}
},
"required": [
"observed_at",
"technologies"
],
"type": "object"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"required": [
"url"
],
"title": "YouTube embed fingerprint monitor input",
"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"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-14T14:44:14.308Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-14T14:44:13.896Z"
},
"resource": "https://stack.halowerk.com/stack/articles/youtube-embed",
"serviceName": "Tech Detect",
"tags": [
"x402",
"halowerk",
"stack_youtube_embed"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Purpose-bound YouTube embed observation (media) using the existing fresh Stack-Monitor. Returns stack_youtube_embed_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. One public HTTPS root domain, up to150 baseline technologies; 9s time"
}What the leaf hashes
{"body":"5c167ace2e057e80f85cf94f5ff416a1e04814c0fafd811588314d5ff9cc701c","id":121908,"kind":"listing","method":"baseline/1","observed_us":1793025620655106,"prev":null,"subject":"x402_bazaar:https://stack.halowerk.com/stack/articles/youtube-embed","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).
- 0x88cfb48bf20d7d1008cb62a63e716e50fbe2b7cac066d7c41ad9c3e9f4127e39
- 0x4094c88414ee9087cfb71f80eb5e73afd7398ec0d16094a2de1eefdf01f8df23
- 0x8506dbc83ae3b7129c05c59bbf03c9f5bded1f3bb6fb9f1b2a6b9497f853f56c
- 0x6fc77068fae832925df3e472b3c2991fe64088c21ed89732db73516748205861
- 0x81294ce55db3dc564cf9a65743181b96a3cb9086e43552a7953fe852411c4996
- 0x4148838fc44f15ebf1c8ac54e3711d980eeb42e682f92bbb86695e913f8c3f1a
- 0x204ca15d73b3ec74078e08a968b0ed4f118b57c9fec6382e8f84b2d47dde880f
- 0x1d551861edf2d5cdc5bbbee8c58e1db39b0f45084d8912c7f943025f99a03c50
- 0xf9ed18286f6517b47cbf859f0ffddb7da1c9fb2f6c0d34f4d7757f67a6848bfb
- 0x0bddd95edb3cc8a74f81c35b1f32507f6ed7a6ed6ae13fea115bbe410ecc9777
- 0x8c20bf7d4b3dd52508d554a379143f96b80b2bc0af227c0b1ce2e34d99c6430b
- 0x7bf2d426bb827b94d7608055662cf2e3f09791e1a4c2c6bd606c0a9e89b18e59
- 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
- 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
- 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
- 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae