← The evidence ledger
Evidence row 76918
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://kertivo.com/address/check/full
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 02070f2565a622f8d06398abeb6a5b407e9bc3cfc7c6e94a151e176ef2fadff2
- Leaf
- 0x40f25a6f1c6f7a27170731b35a87c6dbd751c567f68177e267d7cc90a7ce58c7
What was observed
{
"endpoints": [
[
"x402",
"https://kertivo.com/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": "2026-10-24T00:38:51.207Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-24T00:38:50.817Z"
},
"resource": "https://kertivo.com/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":"02070f2565a622f8d06398abeb6a5b407e9bc3cfc7c6e94a151e176ef2fadff2","id":76918,"kind":"listing","method":"baseline/1","observed_us":1793025493126108,"prev":null,"subject":"x402_bazaar:https://kertivo.com/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).
- 0x40f2ed025f62b5e9b73da83964082b1f9f4dc49f62f0e0a2f68f19a5640d01c4
- 0xe6d7ecc83e67a0f7c737f8a7753b801a8f6041ce76fd803b413e84907405c334
- 0x149442adde122ea2e2a7cfaed5a3edb907b323f21472d5c09ec4da03db591f1a
- 0x41368d62bf7dab4d884f6bd28cb4b2d8acab8c2bd8e511ce49577c6ee452f1ae
- 0xffefc225e8e1bd9d52312467da1861f24d439ac2da7221786dd27ef57790d89c
- 0x5fa3b97f2d1b5c1a78daf98d9af3a8977e984aac8fd521d87309deea4e12af77
- 0x359c8d7c761a977e60adb8bea3d1a3c6f36c605662745362edf444fe0f60dfb8
- 0x19ecbd91fd42125cc1954c625b459c11979f30b748a38b67af3a034780f90d84
- 0xb676d4101a8980d0003f1e29c997146db159796f89f5178cbc4beb866bcd4da9
- 0x61ddb91fde9e2c921e12d8fcfd92154f500278c092641e51eabcf667263cd2b9
- 0x475d2fbee38b77be440946f3f083a3953187376db2f7f57a3a3db41905aa12b6
- 0xe2bb2a30c74e0bf16b8b75c332bdd45334d0338bef3f3022b7ea7b55718e1369
- 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
- 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae