← The evidence ledger
Evidence row 19377
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://paycheck.hectichustle.workers.dev/address/check/full
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 1129677f335145119e7f735d6e212998916430684fb568b69d0401fbbb503d2a
- Leaf
- 0xfe0e06754c4b376f3e1cabecb1860245b41354e60f4d27f750a59690fa35fce0
What was observed
{
"endpoints": [
[
"x402",
"https://paycheck.hectichustle.workers.dev/address/check/full"
]
],
"name": "Kertivo Shield (full)",
"owner_address": "0x509e55c4f898b43c856fb0e51048b1b7bfbc9ede",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x509E55c4F898B43C856Fb0E51048B1b7bFBC9eDE",
"scheme": "exact"
}
],
"description": "Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recent Base USDC transfers; v2 page fallback) so coverage is usually the sender's full Base USDC history. Body {from, to}. Not charged if the index is down. Cheap partial/RPC tier: POST /address/check ($0.001).",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"from": "0xfc1e390266f3b29179b5d63a7937a689d1e5279a",
"to": "0xccd53f97ddfdf6939028698803dfe20fac455d07"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"chain": "base",
"coverage": {
"complete": true,
"counterparties": 10,
"coveragePct": 100,
"historyComplete": true,
"indexer": "blockscout x402 (paid page)",
"indexerPages": 1,
"lowCoverage": false,
"rpcCalls": 1,
"scannedFrom": 0,
"scannedTo": 52410000,
"source": "blockscout",
"transfersSeen": 12,
"windowBlocks": 52410000,
"windowFrom": 0,
"windowTo": 52410000
},
"from": "0xfc1e390266f3b29179b5d63a7937a689d1e5279a",
"lookalikes": [
{
"address": "0xccd560c57ca850ec6465008fdbc55d3b32b75d07",
"dustTransfers": 1,
"inbound": 0,
"lastBlock": 52377228,
"outbound": 1,
"pattern": "dust_or_zero_value",
"realOut": 0,
"sampleTx": "0xf34c5e5ecd6a10e63133633f3d0108019f2667bd6c0557390e01dd6c8ca4ddd4"
}
],
"mode": "live_paid_full",
"priceCharged": "0.005 USDC",
"reasons": [
"you have paid 'to' before, but 1 lookalike(s) also appear (poisoning attempt): keep using the full address you verified"
],
"risk": "medium",
"seenBefore": true,
"to": "0xccd53f97ddfdf6939028698803dfe20fac455d07",
"token": "USDC"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"description": "Full-history Shield: body {from, to, contacts?}. from is required (no contacts-only / recipient-only on /full).",
"properties": {
"chain": {
"description": "Optional. Base only.",
"type": [
"string",
"integer"
]
},
"contacts": {
"description": "Optional: up to 50 trusted addresses / address book (aliases: known_addresses, known).",
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 50,
"type": "array"
},
"from": {
"description": "Sender address (aliases: sender, fromAddress). Required for /full.",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"to": {
"description": "Intended recipient (aliases: recipient, toAddress)",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"token": {
"description": "Optional. USDC only.",
"type": "string"
}
},
"required": [
"from",
"to"
],
"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": {
"chain": {
"enum": [
"base"
],
"type": "string"
},
"contacts": {
"description": "Only present when contacts were sent",
"properties": {
"checked": {
"type": "integer"
},
"inContacts": {
"type": "boolean"
},
"lookalikes": {
"items": {
"properties": {
"contact": {
"type": "string"
},
"prefixMatch": {
"type": "integer"
},
"suffixMatch": {
"type": "integer"
}
},
"type": "object"
},
"type": "array"
}
},
"type": "object"
},
"coverage": {
"properties": {
"complete": {
"type": "boolean"
},
"coveragePct": {
"type": "number"
},
"lowCoverage": {
"description": "true when coveragePct < 10: almost nothing was scanned, so risk low does not mean safe (top reason explains; retry, pass contacts, or use /address/check/full)",
"type": "boolean"
},
"rpcCalls": {
"type": "integer"
},
"scannedFrom": {
"type": "integer"
},
"scannedTo": {
"type": "integer"
},
"transfersSeen": {
"type": "integer"
},
"windowBlocks": {
"type": "integer"
}
},
"type": "object"
},
"ignoredFields": {
"description": "Request fields Kertivo Shield did not use (they did not affect the answer); only present when there were any",
"items": {
"type": "string"
},
"type": "array"
},
"ignoredNote": {
"type": "string"
},
"lookalikes": {
"items": {
"properties": {
"address": {
"type": "string"
},
"dustTransfers": {
"type": "integer"
},
"inbound": {
"type": "integer"
},
"lastBlock": {
"type": "integer"
},
"outbound": {
"type": "integer"
},
"pattern": {
"enum": [
"dust_or_zero_value",
"lookalike_counterparty"
],
"type": "string"
},
"realOut": {
"type": "integer"
},
"sampleTx": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"risk": {
"enum": [
"low",
"medium",
"high"
],
"type": "string"
},
"seenBefore": {
"type": "boolean"
},
"token": {
"enum": [
"USDC"
],
"type": "string"
}
},
"required": [
"risk",
"lookalikes",
"seenBefore",
"coverage"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T02:34:06.268Z",
"quality": {
"l30DaysTotalCalls": 22,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-26T02:34:05.823Z"
},
"resource": "https://paycheck.hectichustle.workers.dev/address/check/full",
"serviceName": "Kertivo Shield (full)",
"tags": [
"base",
"usdc",
"security",
"address-poisoning",
"full-history"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recent Base USDC transfers; v2 page fallback) so coverage is usually the sender's full Base USDC history. Body {from, to}. Not charged if the index is down. Cheap partial/RPC tier: POST /address/check ($0.001)."
}What the leaf hashes
{"body":"1129677f335145119e7f735d6e212998916430684fb568b69d0401fbbb503d2a","id":19377,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025331585521,"prev":null,"subject":"x402_bazaar:https://paycheck.hectichustle.workers.dev/address/check/full","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).
- 0xfe0e601a86ae83eb7e6817dd91246de3bf54c38c3fa3c753a83723f440fea94b
- 0xe2ef2fcf4a1b3d4d20fa368a560d8dc8aff0ab292b20e52df89201b84e14502c
- 0x41dfcb7d931eac1190c1924a6006a9acfe2f4514f2c93c3cf8fd9ae6eac8e175
- 0xf8b65589d455315b90899480bbb8fa7a46ce2b8437d7b35cecec25f257ddb9ae
- 0xea386f1de33e2067fd7cd93a79e97d2db33e5b9cf026421d04df0831c28d0019
- 0x98ead22e9b2e4f41dc6f1873819c6b7568912bf5fdb984b03f2581d3f6d35a8b
- 0xd02da21b15b546d0da29cf66bdb9d8c48f7e7e2b6b11d4dd9d72897916d4096c
- 0x50555ae251038468924d3125182a18867ff9a1840b15170705dece8b5c456149
- 0x879d07ba1af2b95b1c3aaf5bb32738bbf09114433f0c4a151c6ddd6f396bc71f
- 0x53f4adead19f010a0cb7fa8d5eab040e5cd149da0d3677578375a3b33d54ca60
- 0xf45641bf26b2b86d9338aa6dc8640a8a378fbd786d23400636aaf30709453e50
- 0xa1d268c111b09550fdb70b6d9d0b58c94dc828b083baa8f1360300aab6230a9c
- 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
- 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae