Evidence row 248120

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://kertivo.com/address/check/full"
    ],
    [
      "x402",
      "https://kertivo.com/check"
    ],
    [
      "x402",
      "https://kertivo.com/check/deep"
    ]
  ],
  "name": "kertivo.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "kertivo.com",
    "endpoints": [
      {
        "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).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0xfc1e390266f3b29179b5d63a7937a689d1e5279a",
            "group": "body",
            "name": "from",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0xccd53f97ddfdf6939028698803dfe20fac455d07",
            "group": "body",
            "name": "to",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Kertivo Shield (full)",
        "tags": [
          "base",
          "usdc",
          "security",
          "address-poisoning",
          "full-history"
        ],
        "url": "https://kertivo.com/address/check/full"
      },
      {
        "description": "Payment verification for x402: verify a USDC transaction on Base — did this payment really settle, and did it pay the right address the right amount? Send a tx hash (or x402 authorization): confirmations, real-USDC transfer check, expectedPayTo/expectedAmount match, fake-USDC and lookalike-address warnings, who funded the payer (external, self_funded, unknown), plain-English summary and a receipt. Body {txHash|authorization, expectedPayTo?, expectedAmount?}. Free demo: POST /demo.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "1",
            "group": "body",
            "name": "expectedAmount",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0x509E55c4F898B43C856Fb0E51048B1b7bFBC9eDE",
            "group": "body",
            "name": "expectedPayTo",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0xc37cbdfa44230f05129348d5160254abf354791d79de68228b201ba09de143c1",
            "group": "body",
            "name": "txHash",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Kertivo Check: payment verify",
        "tags": [
          "payment-verification",
          "x402",
          "base",
          "usdc",
          "settlement"
        ],
        "url": "https://kertivo.com/check"
      },
      {
        "description": "Did this USDC payment settle, and what is the payer's funding source? Deep Base verification: confirmations, payTo/amount match, fake-token and lookalike warnings, plus the payer's inbound USDC funding history from an index (latest 500 transfers before the payment, then up to 5 more pages; coverage.historyComplete says if that was the full history), top funders, coverage stats and a recheckable sha256 receipt. Not charged if the index is down. Body {txHash, expectedPayTo?, expectedAmount?}.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "1",
            "group": "body",
            "name": "expectedAmount",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0x509E55c4F898B43C856Fb0E51048B1b7bFBC9eDE",
            "group": "body",
            "name": "expectedPayTo",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "0xc37cbdfa44230f05129348d5160254abf354791d79de68228b201ba09de143c1",
            "group": "body",
            "name": "txHash",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.05",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Kertivo deep payment verify",
        "tags": [
          "payment-verification",
          "base",
          "usdc",
          "funding-source",
          "full-history"
        ],
        "url": "https://kertivo.com/check/deep"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "kertivo-com",
    "integrationType": "",
    "isNew": false,
    "name": "kertivo.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.021667",
      "currency": "USDC",
      "maxAmount": "0.05",
      "minAmount": "0.005"
    },
    "provider": "kertivo.com",
    "providerUrl": "",
    "serviceName": "Kertivo",
    "tags": [
      "base",
      "usdc",
      "security",
      "address-poisoning",
      "full-history",
      "payment-verification",
      "x402",
      "settlement",
      "funding-source"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"a6e9dd6e8f9d95ae1a9e734be563d05c3bcc5b33253b483332c37e450b47ed9e","id":248120,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793029277640204,"prev":53743,"subject":"agentic_market:kertivo-com","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xeea8e875b49bfb6939b1675105fb15fd716441eef2b35941cd6da74810a46c53
2. 0xb8a7016cd3466021abe191a41031bd3e0d8c4f5ebf08c4fc6efe0af263158176
3. 0xce6d2f2e8ce0d3a17277fddc5c86e68d8d642d826f1979e2344434fa0af352ce
4. 0xe261a65b74c84781a0d40d3c8b3e06b0b6f24cc9753ffc4961f43e9b9d119c0d
5. 0xf277869aeab39361b340b3af2fffb912a704471fb989a07a5fa92af13800b5f9
6. 0x231fd90d382f53b0ec5056cbd62d7dee3e1a3cb218a5335b5a68da35247ebb58
7. 0xd485ee642c2d255fd61c8dca41f6d6074ccaa0daadd5acabb76a6b9c8cd858c2
8. 0x5a65aa65cc80cd9024589e5e42ed99bccc0a229497f5dcf2ca1211915b2ceff8
9. 0xc2802e175466f90063abc5e22614fde16de6a0b7d11b3f61692936b273000d81
10. 0x6a342165fe5c2fa8b0f8cd8b99ab88e01f9e0a758f16ba9193ba775d71446fbb
11. 0xd1f02e907670bf2f4c72056210a7d4ee252934850293a927f852acd3952f44a4
12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae