Evidence row 72683

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://counterpartycheck.com/v1/check"
    ]
  ],
  "name": "counterpartycheck.com/v1/check",
  "owner_address": "0xf5a89c3fb9c7158c7d00ab74bdebe510d1e54e27",
  "raw": {
    "accepts": [
      {
        "amount": "250000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xf5a89c3fb9c7158c7d00ab74bdebe510d1e54e27",
        "scheme": "exact"
      }
    ],
    "description": "Pre-payment counterparty risk check for AI agents: OFAC sanctions (names, aliases, wallets), domain age and email authentication, vendor and executive impersonation domains, routing/IBAN/SWIFT/wallet validation, and invoice-fraud signals. Returns proceed/review/block, explained findings and a signed receipt.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "context": {
                "bank_details_changed": true,
                "known_good_domain": "acmesupply.com"
              },
              "counterparty": {
                "email": "ar@acmesupp1y.com",
                "name": "Acme Supply Co"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "findings": [
                {
                  "id": "lookalike_vendor_on_file",
                  "severity": "critical",
                  "title": "The payee email domain imitates the vendor's real domain"
                }
              ],
              "receipt": {
                "algorithm": "Ed25519",
                "payload": {},
                "signature": "…"
              },
              "risk_score": 100,
              "summary": "Do not pay: the payee email domain imitates the vendor's real domain.",
              "verdict": "block"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "context": {
                      "type": "object"
                    },
                    "counterparty": {
                      "properties": {
                        "address": {
                          "type": "string"
                        },
                        "country": {
                          "type": "string"
                        },
                        "email": {
                          "type": "string"
                        },
                        "name": {
                          "type": "string"
                        },
                        "website": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "name"
                      ],
                      "type": "object"
                    },
                    "payment": {
                      "type": "object"
                    }
                  },
                  "required": [
                    "counterparty"
                  ],
                  "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": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T12:02:41.565Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T12:02:41.35Z"
    },
    "resource": "https://counterpartycheck.com/v1/check",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Pre-payment counterparty risk check for AI agents: OFAC sanctions (names, aliases, wallets), domain age and email authentication, vendor and executive impersonation domains, routing/IBAN/SWIFT/wallet validation, and invoice-fraud signals. Returns proceed/review/block, explained findings and a signed receipt."
}

What the leaf hashes

{"body":"14a3e06d9fd95d5a6019d0abd7fe003168fb91077b7d353f9e5fbaf70b42956b","id":72683,"kind":"listing","method":"baseline/1","observed_us":1793025486369728,"prev":null,"subject":"x402_bazaar:https://counterpartycheck.com/v1/check","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. 0x296f71ef1985d5da4af02190675b8ae2dd7073d57dcf484beaad68b27dd8b407
2. 0x2d2a8b3fd0dc62948bd3da459c1ea4099c3e30812c5afde16dadcd1864f892ab
3. 0x9cdcc3f13c6368bc8de5d7b85ef02a4e480f5b078f71b29ebe0455da87d96a70
4. 0xbe2216fb381c7f9c58337332803449e1a0c478261cde17f15981a8b5d8df69d4
5. 0x273d558721299a1665b10baf623bf434ce9cd7e1a4c3a98a56aecc8f62b29c56
6. 0xce2a453c9c6d8b4cb898541d68f221c17b9c5fce0d543d868b013c3a3a70f094
7. 0x90ce93155f2804e557498968717410ca6304dd5e29bf355fec66907952c5a454
8. 0x4b31d2ea67e5c9e46841ba39232b5404e0e54036d82f8c52bf47e7c204842755
9. 0x7f04e8cebf97ad65040134825fa60936cec5afb0767622f7696d7b145a930f17
10. 0x079e56fd7ce09a98c00f4680a76c581bded42a26156180f38eee79f5a6f72d59
11. 0x525ed12bc40d74342377fb46a14f281838d153c85147520116f4d7fa219aff5e
12. 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
13. 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae