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Evidence row 1038853

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://freetier-agent-api.pages.dev/api/email-verify
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
56db5111383787ba97fe8582c5972a20b155ba6a117a473eb8c53520b5bc9cf5
Leaf
0xef324871ad88eaec8afb90bfdf1817cbe7e20a63403335ef70a0d2e92ea177fe

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://freetier-agent-api.pages.dev/api/email-verify"
    ]
  ],
  "name": "Agent Extraction API",
  "owner_address": "0x165eb3dc3e98403ecb1141e90400f5e71806554b",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x165Eb3dC3E98403ecB1141e90400F5e71806554B",
        "scheme": "exact"
      }
    ],
    "description": "Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS, disposable-domain flag (CC0 blocklist, ~9,900 domains), role-address flag (info@, support@...), free-mail flag. Verdict: deliverable_domain | risky | invalid. Cannot confirm that the mailbox itself exists. Addresses are not stored or logged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "email": "jane.doe@example.com"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "disposable": false,
              "domain": "example.com",
              "email": "jane.doe@example.com",
              "free_mail": false,
              "has_a": true,
              "has_mx": false,
              "local_part_length": 8,
              "mx": [
                {
                  "host": "",
                  "preference": 0
                }
              ],
              "note": "DNS checks only, no SMTP probing: whether the mailbox itself exists is not checked. Nothing is stored.",
              "null_mx": true,
              "reasons": [
                "domain publishes null MX (accepts no mail)"
              ],
              "role": false,
              "sources": [
                {
                  "name": "Cloudflare DNS over HTTPS (live MX/A/AAAA lookup)",
                  "url": "https://developers.cloudflare.com/1.1.1.1/encryption/dns-over-https/"
                },
                {
                  "license": "CC0 1.0",
                  "name": "disposable-email-domains/disposable-email-domains (blocklist)",
                  "snapshot": "2026-10-17",
                  "url": "https://github.com/disposable-email-domains/disposable-email-domains"
                }
              ],
              "syntax_ok": true,
              "verdict": "invalid"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "email": {
                      "description": "one email address",
                      "type": "string"
                    }
                  },
                  "required": [
                    "email"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "disposable": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "domain": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "email": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "free_mail": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "has_a": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "has_mx": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "local_part_length": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "mx": {
                      "items": {
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "type": "array"
                    },
                    "note": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "null_mx": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "type": "array"
                    },
                    "role": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "sources": {
                      "items": {
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "type": "array"
                    },
                    "syntax_ok": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793252197/bazaar-icons/19906174df41ffa4.png",
    "lastUpdated": "2026-10-29T07:52:25.891Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-29T07:52:25.082Z"
    },
    "resource": "https://freetier-agent-api.pages.dev/api/email-verify",
    "serviceName": "Agent Extraction API",
    "tags": [
      "email",
      "validation",
      "mx",
      "disposable-email"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS, disposable-domain flag (CC0 blocklist, ~9,900 domains), role-address flag (info@, support@...), free-mail flag. Verdict: deliverable_domain | risky | invalid. Cannot confirm that the mailbox itself exists. Addresses are not stored or logged."
}

What the leaf hashes

{"body":"56db5111383787ba97fe8582c5972a20b155ba6a117a473eb8c53520b5bc9cf5","id":1038853,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298276306630,"prev":null,"subject":"x402_bazaar:https://freetier-agent-api.pages.dev/api/email-verify","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (242798 rows).

  1. 0xef322e1502fafa4ac1c2bdb8cb177c32c3d68c01381dd332efe600c3eb3d8c4f
  2. 0xf97d5da88c102722d81963a106e27648d531f0531aaad5c80ff647fbf6d75aff
  3. 0x5e2c048110d64326b66d789b5844cf8378662c83d4397ac766742812106acbd5
  4. 0xcb3f41d8cebd5f759c7238ae821a8d802e58c4d438bb769f449a7cbbe861297a
  5. 0x04bb6c91be5c56f2ae667cfecaa7e0076b951078ede67aa7d18a8ad2b1cc8539
  6. 0x2d3ce0a6cf99770fdfdc10edc140c2fc0d220811676d737bac65c54eedf425d5
  7. 0x413a09ceb82a1244b69a4139b9ce897017083911ab2268c25a84f0dd7dd25194
  8. 0x7f478f033319db4b26ec6a6cc8e4b674eccafddfa68e4a4ef4f1740d59e6109f
  9. 0x84a13036f7ec4d24f5c0941230478193d37a02d1bf016fbe9f94af416ad0ebc7
  10. 0x1c522acdefd71a29779b6ad266037c58138e2bdd3bd51b5599e63a5b688f54e2
  11. 0x4c070375b5971e1bcaf1007cd0206de053419b6a145a3511c708a478caeb7499
  12. 0x9cfe20fad7f22fce9f16f591aa2d2ca2100c6bffd5f642a38f4bfba5923824e7
  13. 0xb7135ebdf44d4b9a6964eab1a8ef6bfb119f4566990979a4bd04ab15dc46a7fa
  14. 0xdd7eee8bdadd60ea2c845df144e254573e75dd4221ce0c344f92f184bcc69afd
  15. 0x1623e28c5fc42dfa00ec1935da937a96d5bbf27124e83666dc61efe8facbb339
  16. 0xa034ebc8d117fbf1ed466b70baa0478bf213b743e1a41cba1d2da7a9f310184d
  17. 0x1597ec94933260048e5e583aff1ad0fd44cc49efcd0a994091ed5db4924d7b02
  18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785
Day root
0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
Chained
0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
Published
On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1

How to check it · This row as JSON