Evidence row 278475

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": 8,
      "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":"9ce32c87143a3ed2842fd4d316402d09b359bc30d4322042e5176017d3349945","id":278475,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042073216523,"prev":16592,"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. 0xd37edeaa6e5dd20dd97844237e68e8bb848ea53852972da3b31ebc41dbcf9d7b
2. 0xe477443d89bea65581c8889b7fb176911005c788faa97ceedf5f08e933e5f184
3. 0x3c684dd0300b029dcab41ad1d6c2dbcc74160878a812e9b7e0fd0a464caa3850
4. 0x315d4519e9972ce1eb00cfe7283e712f0cb7717e1383dd5884e53634906d7371
5. 0x2ed28e6be6d2d4bd413b22951e9cc5844892dc854fe5e0264d0442a8a19001b1
6. 0xfcc24a314b671d20fb1d84d311123d570ccc059f1337f7c292ea6d3226e1549a
7. 0x54747648eefb03752cbca3ca65e09ef461e841f8401c9dc6c2bb24a19604648e
8. 0x524cbae057f276a559c5440b5fd4f966ed8167d5321a9c6b5ac86d579ef6a8c2
9. 0x42bbccbb422c591c5e9cc66f160ea72e0ff83629e23fd162fa4cb22d31530292
10. 0x0834e939cfa9df57864320cb906e871c291dd8cc7aa8327c208c14867fb03a20
11. 0x14362d8e1df4e5c0cf9c6949986f8f51c6a0b5605b593e145aade16c5f5c871a
12. 0x9f6b360f1992898cb3f17e45d0bf5a96f946d7eaf9705a57af03c151a407d239
13. 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae