← The evidence ledger
Evidence row 1261912
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.firstmention.uk/s/check-sanctions/screen
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3a8292bf624c3094fe5086d21d1fc78dade655b6aa9adc90f76a50e8ac99bce7
- Leaf
- 0x43dfee859bcb2a609c1e4bac11ffb68f3fbfe82adc8d26281ff09b4a7b30bf90
What was observed
{
"endpoints": [
[
"x402",
"https://api.firstmention.uk/s/check-sanctions/screen"
]
],
"name": "check-sanctions",
"owner_address": "0x3cfd4b1afe41ad99b11881d77e2b0d9adc212f13",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x3CfD4B1AfE41ad99b11881d77e2B0d9adc212f13",
"scheme": "exact"
}
],
"description": "Sanctions screening against US OFAC, UK OFSI and EU lists with real matching on all three. Screen a name, a wallet address, a batch, or your own watchlist. Non-Latin names are transliterated; unscreenable names return 400, never a false clear.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"days": 30,
"names": "Rosneft|Acme Widgets Ltd|Gazprom",
"threshold": 0.85
},
"type": "http"
},
"output": {
"example": {
"flagged": [
"Rosneft",
"Gazprom"
],
"flagged_count": 2,
"newly_sanctioned": [
"Rosneft"
],
"newly_sanctioned_count": 1,
"note": "Screening signal from public lists, not a legal or compliance determination.",
"results": [
{
"best_score": 0.98,
"flagged": true,
"matched_names": [
"ROSNEFT"
],
"name": "Rosneft",
"newly_sanctioned": true
}
],
"watched": 3,
"window_days": 30
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"days": {
"description": "Look-back window in days (default 30, max 400).",
"type": "number"
},
"names": {
"description": "Pipe-separated counterparty names to re-screen, up to 50.",
"type": "string"
},
"threshold": {
"description": "Fuzzy match threshold 0.5-1.0 (default 0.85).",
"type": "number"
}
},
"required": [
"names"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"flagged": {
"items": {
"type": "string"
},
"type": "array"
},
"flagged_count": {
"type": "number"
},
"newly_sanctioned": {
"items": {
"type": "string"
},
"type": "array"
},
"newly_sanctioned_count": {
"type": "number"
},
"note": {
"type": "string"
},
"results": {
"items": {
"properties": {
"best_score": {
"type": "number"
},
"flagged": {
"type": "boolean"
},
"matched_names": {
"items": {
"type": "string"
},
"type": "array"
},
"name": {
"type": "string"
},
"newly_sanctioned": {
"type": "boolean"
}
},
"type": "object"
},
"type": "array"
},
"watched": {
"type": "number"
},
"window_days": {
"type": "number"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-30T08:49:19.71Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-30T08:49:19.301Z"
},
"resource": "https://api.firstmention.uk/s/check-sanctions/screen",
"serviceName": "check-sanctions",
"tags": [
"sanctions",
"ofac",
"ofsi",
"compliance",
"watchlist"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Sanctions screening against US OFAC, UK OFSI and EU lists with real matching on all three. Screen a name, a wallet address, a batch, or your own watchlist. Non-Latin names are transliterated; unscreenable names return 400, never a false clear."
}What the leaf hashes
{"body":"3a8292bf624c3094fe5086d21d1fc78dade655b6aa9adc90f76a50e8ac99bce7","id":1261912,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385518227222,"prev":null,"subject":"x402_bazaar:https://api.firstmention.uk/s/check-sanctions/screen","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (243099 rows).
- 0x43e063fa62920f0ce82328767dbe721e2df00d561b401207f02a032a57f9cbe0
- 0xe3f40fdde4239c0ba31c4d13f13865d59cc36ccd3e5ee61f034becf1434d5ff3
- 0x92821e8dcb7fb0cc21a456ab920c3f7ebd8009ec8010171f5523374b338ab2df
- 0xcc49cd6b2290516da21273bb3cd34dfb9832ee67ebe62c5f64981b9bb401afb1
- 0xffcd0574c3b94996d8222968f4749a0487dfc124f5a6ddc670e8a2314058c4b9
- 0x2b99109a04098c1d9af2e063532ac4614af528c2d66dc90062a51bcb7873f192
- 0x55e287e435160adb3c005b5ec983451038547d6edf88f138b9848f2dac9ea999
- 0x236e5154712876796e6a4560d4f37495501e26b49cac5444a66582c10e7b7dbe
- 0x03c93f28796ed154eca7ddf8cd845ef28061396cbc80f305f3adc621dad14f94
- 0xb0ec1227d2d31c9bcb5f0075717441a716a59d62f118f0cd2258d36334e48de9
- 0x84112a24f1e91ca4b96d8a9c88625bc1da64ef2d5d1d0a4ead64d224962ac221
- 0x181303cca10a7aac486a6ea2c2ddaae70e35f5af40f5d77d273e00c94f930237
- 0xcc206dc2f9e188db598d4b3a17da47efe415d2946ef4b3a478b5d02f3ddb1474
- 0x775f1cf1eda93a75a3d05aa8e7b45b258d1de91c21741301b1aa3d048fba588c
- 0xd7d5c71ec079257a487d0494049c896f97cf8bf7d89a43fea539777c548c96f3
- 0x50ca74d7c8f26a46e9c3b8fb5e7f9ebcdfdcc1b7c863db3b6d2b7c12e24ca66f
- 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
- 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147
- Day root
- 0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
- Chained
- 0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
- Published
- On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861