Evidence row 1508041

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://verdict.kechlab.com/v1/email-check"
    ]
  ],
  "name": "Verdict 402",
  "owner_address": "0xb36c56a749f81ffeb44a134082dd4744e1d254eb",
  "raw": {
    "accepts": [
      {
        "amount": "8800",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xb36c56A749f81FFeb44a134082DD4744E1d254Eb",
        "scheme": "exact"
      }
    ],
    "description": "Before an agent trusts a sender: is this email address suspicious? Code compares the domain with the expected one (lookalike, other domain), spots disposable addresses, deceptive characters and free mailboxes used in the name of an organisation; the engine judges whether the display name and subject",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "accounts@supplier.com",
              "display_name": "Supplier Inc",
              "expected_domain": "supplier.com",
              "subject": "Invoice 118"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "mode": "email-check",
              "paid_sats": 20,
              "payment_hash": "x402:<sha256 hex>",
              "receipt": {
                "payload": {
                  "at": "<ISO 8601 time>",
                  "kid": "<signing key id>",
                  "mode": "email-check",
                  "payment_hash": "x402:<sha256 hex>",
                  "v": 1,
                  "verdict_sha256": "<sha256 hex of the verdict>"
                },
                "signature": "<base64url Ed25519 signature>"
              },
              "verdict": {
                "decision": "ok",
                "reasons": [],
                "rule": "block if lookalike of the expected domain, or other domain, disposable address or free mailbox with imitation >= 0.6 ; review if any signal, imitation >= 0.4 or pressure >= 0.6 ; otherwise ok",
                "scores": {
                  "impersonation": 0.02,
                  "pressure": 0.03
                },
                "signals": []
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "address": {
                      "description": "the sender address",
                      "type": "string"
                    },
                    "display_name": {
                      "description": "(optional) the display name",
                      "type": "string"
                    },
                    "expected_domain": {
                      "description": "(optional but recommended) the expected domain, for example supplier.com",
                      "type": "string"
                    },
                    "subject": {
                      "description": "(optional) the subject of the message",
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "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": "2026-10-31T07:28:01.918Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T07:28:00.779Z"
    },
    "resource": "https://verdict.kechlab.com/v1/email-check",
    "serviceName": "Verdict 402",
    "tags": [
      "email",
      "fraud",
      "ai-agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Before an agent trusts a sender: is this email address suspicious? Code compares the domain with the expected one (lookalike, other domain), spots disposable addresses, deceptive characters and free mailboxes used in the name of an organisation; the engine judges whether the display name and subject"
}

What the leaf hashes

{"body":"a9682aef30d951f05cdee22e0863577212dc2eef646beca3ef0b5509def83037","id":1508041,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472706658553,"prev":null,"subject":"x402_bazaar:https://verdict.kechlab.com/v1/email-check","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0xf95dee73f4cffab0e17507c654951773a664c8fb91d55a9254e6da9f2a2e33b9
2. 0xd246e261e740d4c9b8d68d5b3112e20841a2bbfe81a035c9eaa56f9b768b227d
3. 0x4fb1ae8197dae5d958687a4e405a20c5d6960a727530d91f1f5e2482aa49c239
4. 0xb220f137e78405b749a6490d041ebc3261cabd8016060e030e061e093208bb35
5. 0x524cf374793a59fb9738a95c295e23c4c9c1dd5c93ce35aa55187e620afd6b9a
6. 0x0cf7eb6231e1f49a6b123cba7baae1ab4986118dbaa1b5c81629d312bc459777
7. 0x7c076e096ab3ce2afd1d2c8195412cf12ffd7fc55e72b3aaacb68e736b84e4b7
8. 0x8d3a13073d575e26d4fa46cac59cfb68c8e82a7137b3a952e3b0c84c1b54be0d
9. 0x3e65fea40d1d6110d4d76c07c86e7b2454091add531c820a10d17ddc4a5f7de3
10. 0x39b3acb21987e6c21c6eea99408d629813883f32c5c74dc4ce9215462bffc686
11. 0x6d73c8b3c14547b9d7b7b802ce395a96aff4863a79681467cdbf67b09678d667
12. 0x9cd09c1785461d3cfeb035d08e6094fb1b0bca07134e4585843a4a2ad5eaac5d
13. 0x6c4324d3edf63f1c5818a600ecde74e6316cc337c4218b73b366a817b8e059b6
14. 0xe2a6611300abdb7312e664a37fe7f1b470ff8ebe48733a7b7064c0db1f012dd5
15. 0xe9e97d8cdaf19b6da06606a22b4eea548063df6bacb661abea4c37aa637b5c3b
16. 0x4befbbd74452b2a3a89b7e1e809ba011f1be78aeb8153059503fda47c454d086
17. 0xa1146af524f673843507e7427a575964580eef01bc0e0eae466a7920df017ab2
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0