Evidence row 74568

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://email-verify-api-production-d262.up.railway.app/domain-check"
    ]
  ],
  "name": "email-verify-api-production-d262.up.railway.app/domain-check",
  "owner_address": "0xffc458db291b4abce020fe3de4f91f2770e537b1",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1",
        "scheme": "exact"
      }
    ],
    "description": "Check whether a domain has valid MX records and is not on the disposable list; also reports free-provider.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "domain": "acme.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "disposable": false,
              "domain": "acme.com",
              "free_provider": null,
              "mx_records": [
                "aspmx.l.google.com",
                "alt1.aspmx.l.google.com"
              ],
              "valid": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "domain": {
                      "description": "Domain to check for valid MX records and disposable status, e.g. 'acme.com'.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "disposable": {
                      "type": "boolean"
                    },
                    "domain": {
                      "type": "string"
                    },
                    "free_provider": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "mx_records": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "valid": {
                      "type": "boolean"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T07:07:25.943Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-08T07:07:25.728Z"
    },
    "resource": "https://email-verify-api-production-d262.up.railway.app/domain-check",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check whether a domain has valid MX records and is not on the disposable list; also reports free-provider."
}

What the leaf hashes

{"body":"1c9a31f1869e4edf513068e56a920209511033c825c7eeecaa7692f15e09fbc1","id":74568,"kind":"listing","method":"baseline/1","observed_us":1793025489230517,"prev":null,"subject":"x402_bazaar:https://email-verify-api-production-d262.up.railway.app/domain-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. 0x2b3adebf712e7bbe4cbe756428e6cee131ab170d11b3f076ecfcbc82127ad564
2. 0x3d98a833d988e7a08ac3c1d7bab0d4006bbdbd2c3367d869fda799772a1e255c
3. 0x0fa9d02311f8414f792aac2b277052add53d9ac1a6098ec57d3785f8e51d7813
4. 0xce9ec89739a661739cf3b2b08e0c29548f17c15137085551b62505f0c227f029
5. 0x9f5c4ffe2fd03ce3e8ad12d4bb466ba52467217ca3b0e0fbaa27efd782f97e1b
6. 0x4c444eb47a1a9bdb7b7bff2eb1a7ba6370bc3bef9a86d4bb67ba49e9ca8d2c6c
7. 0x04eb834e74309bc8b74e3032cde0c7dea06ece2726ec02a6bf7d100cbe32be0e
8. 0x1589fb832aba315e75246698da85fb022f60acf39ad2b8264eb429dda48eb863
9. 0xf39a9d1a20c443ec85e4c92007dcbfa1e0ec69cd730017ccdadac95f3c0f417d
10. 0x755e8bb86bef8a205359ea18e6bb499124975e318b315b74b91ac3dddeb77d5e
11. 0xde76827525517f5c8aef4ffd7831eab09ee63757dcc2282bc64307fd6ee67ad1
12. 0xe8bf822fd6c66b233e3e13e08596e8fb41c1ed9b85be0e4d50cfc9b740c0e206
13. 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae