Evidence row 75211

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://fiatdock.com/v1/email/check"
    ]
  ],
  "name": "FiatDock",
  "owner_address": "0xeb12bb2f52eed33dba6a00774e48324032fd87c6",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "J79PfB4V9mbNRD6XrWLGAPCQhB1htX4KW5gMYUgddtNV",
        "scheme": "exact"
      }
    ],
    "description": "Is this email address worth sending to? Syntax, domain DNS (MX, then A/AAAA), disposable/role/free-provider lists, a typo suggestion (gmial.com -> gmail.com), a normalized form and a risk verdict with reasons. No SMTP probe: it vouches for the domain, never the mailbox. An invalid address is a paid verdict; a DNS failure is 502, not charged. Pay-per-call via x402. An empty body is answered for the published example address (name@example.com); send {\"email\":\"…\"} for any other address.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "email": "name@example.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "checkedAt": "2026-09-21T00:00:00.000Z",
              "deliverableDomain": true,
              "domain": "example.com",
              "domainExists": true,
              "email": "name@example.com",
              "hasA": true,
              "hasMx": false,
              "isDisposable": false,
              "isFreeProvider": false,
              "isRole": false,
              "local": "name",
              "method": "syntax + DNS (MX, then A/AAAA) + disposable/role/free-provider lists + a typo map; no SMTP probe",
              "mx": [],
              "normalized": "name@example.com",
              "reasons": [
                "no_mx_record"
              ],
              "risk": "low",
              "suggestion": null,
              "syntaxValid": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "email": {
                      "description": "The email address to check",
                      "type": "string"
                    }
                  },
                  "required": []
                },
                "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": "2026-10-19T05:27:22.832Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T05:27:23.722Z"
    },
    "resource": "https://fiatdock.com/v1/email/check",
    "serviceName": "FiatDock",
    "tags": [
      "email",
      "validation",
      "mx",
      "disposable",
      "contact"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Is this email address worth sending to? Syntax, domain DNS (MX, then A/AAAA), disposable/role/free-provider lists, a typo suggestion (gmial.com -> gmail.com), a normalized form and a risk verdict with reasons. No SMTP probe: it vouches for the domain, never the mailbox. An invalid address is a paid verdict; a DNS failure is 502, not charged. Pay-per-call via x402. An empty body is answered for the published example address (name@example.com); send {\"email\":\"…\"} for any other address."
}

What the leaf hashes

{"body":"ff4edf9b70803c818a6cd2c43d2954aa3080d26f08277642173eb303d413157f","id":75211,"kind":"listing","method":"baseline/1","observed_us":1793025490197842,"prev":null,"subject":"x402_bazaar:https://fiatdock.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 2026-10-26 (296695 rows).

1. 0xc84bdebfafee290b79f7272ade587ea04fd3030126807f65625cb6960cfa8850
2. 0x3a7b9029e2dfca69a4193441bd461899120cc97f3697f66fe6f1eae8f97a7a0b
3. 0xc8070845a39efb0fec91652998a69e32273ec7e2cf26d4f5a1e7f351d9e3100f
4. 0xbb1d18a38a557db319bc798c680886e72c7b6cbcf601452b096863fae8ede848
5. 0x1024f1f641607525445f50cd84e386c8e630194c40f9f7953b1e2e516f5c31b0
6. 0xb23016766c8f4145fea56d381b7cc955291564e0e7796db614131aac810be9d6
7. 0xceb3d446fbdfc9d17526dd245fb91caf4f90c05f9632c48cf6805e88cfc1af5e
8. 0xa87d90b6fa4aff4daecc20111299a2ae849017aa7ef623bdadd6a102882f1041
9. 0x469a34c3c97adfe074d09a0783fee6072aec7957eb78f6ee3e2dfb639a2ffb62
10. 0x675ae978905879f96dab2ece83376d01eb27968f2044719307dbc7f840ae0cec
11. 0xac575d7ca8c3c7e88957908dda0517fbb35f0894886bb91a97cff3aa71fa23e9
12. 0xde09984239f27618a13932caf48f5d39831fc5021500b0581dce0dabd570bd6e
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae