Evidence row 16592

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-tollbooth.onrender.com/api/verify"
    ]
  ],
  "name": "x402-tollbooth.onrender.com/api/verify",
  "owner_address": "0xf1e6050f7f7b6a26bbfc9c2884cdd5720d1bedfe",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xF1E6050f7F7B6a26BBFc9C2884Cdd5720D1bedfe",
        "scheme": "exact"
      }
    ],
    "description": "Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox verification.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "emails": [
                "jane.doe@gmail.com",
                "test@mailinator.com"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "checked": 2,
              "checks_performed": [
                "syntax",
                "domain_mx_or_a_record",
                "null_mx",
                "disposable_domain_list",
                "role_based_account",
                "free_provider_flag",
                "typo_suggestion"
              ],
              "note": "These are format and domain-level checks, not a live SMTP/mailbox delivery guarantee. status 'unknown' means DNS was inconclusive - retry later.",
              "results": [
                {
                  "checks": {
                    "disposable_domain": false,
                    "domain_accepts_mail": true,
                    "free_provider": true,
                    "role_based_account": false,
                    "syntax_valid": true
                  },
                  "did_you_mean": null,
                  "email": "jane.doe@gmail.com",
                  "notes": [
                    "Passed syntax, domain, disposable, role-account, and typo checks."
                  ],
                  "status": "valid"
                },
                {
                  "checks": {
                    "disposable_domain": true,
                    "domain_accepts_mail": true,
                    "free_provider": false,
                    "role_based_account": false,
                    "syntax_valid": true
                  },
                  "did_you_mean": null,
                  "email": "test@mailinator.com",
                  "notes": [
                    "Domain is on a known disposable/throwaway email list."
                  ],
                  "status": "risky"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "emails": {
                      "description": "Array of email address strings, max 25 per call.",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "emails"
                  ]
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "lastUpdated": "2026-10-26T12:03:09.874Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-26T12:03:09.636Z"
    },
    "resource": "https://x402-tollbooth.onrender.com/api/verify",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox verification."
}

What the leaf hashes

{"body":"c0e63dc07bf9cea8d147f8e7c54d223dd46f75bc144f511751db8404eb4ce57b","id":16592,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025324715630,"prev":null,"subject":"x402_bazaar:https://x402-tollbooth.onrender.com/api/verify","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. 0x50a80460785e3e95389f0822c23d3674f251497477d68ed029f4e5ca94408239
2. 0x166e0162122284988dac3ac9f9ca413ffd1756c03313de08aba4e3061da22704
3. 0x13ded0569ff1f4775a7672a8474ac41057b46e5a8b400fa755c1a8ca63208d3d
4. 0xc3fafed9f16f9d089db8881e084233f79f70a9a733f56e2c2ccadfe86c64c45f
5. 0xf6051cbc88e24554b9d28067bdd0153003c0efacc04a8e68511dcfa92fe1b3db
6. 0x223804d9865689cfafe81ff12598206a36c45145a43155e5135b573a24f7a343
7. 0x561d3cf9fe282f5616a8f7264d290b8855416ee13829674b5baf51454e785746
8. 0x50261173751faefe63f43d74be0b63f26cd90d1f8b6f34c99dde924f1bd0c44e
9. 0x368e3df3c24c797da086196225f282efe46aa39be4428ec3e3751153aeb39343
10. 0x1cf289732577ec7d4b7786636bf1c834b739571451a5cc67e3aac33256c9be46
11. 0xfa039eb62e5d0ae9f7aaaafb0fcbceacfa661b07228233046b9a9af94e547a55
12. 0xecaf47ba75097c34f2d3c4d62539dace0db8b484bf08941a9259e2d1e8ccea77
13. 0xf7d2cf278e5d2768b8bdb70730c378877cf7165d8efcbec8bcd3282fdc50d177
14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae