Evidence row 4164701

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.oldcolonyweb.com/v1/email/verify"
    ]
  ],
  "name": "Old Colony Web Agent Services",
  "owner_address": "0x1403ddf1151e0dd4fa68b06cc9cbf7d55cbe2062",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1403ddf1151E0DD4Fa68B06CC9cbf7D55cBe2062",
        "scheme": "exact"
      }
    ],
    "description": "For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retention, mailbox-existence, deliverability or consent guarantee.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "email": "name@example.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "decision": {
                "action": "proceed",
                "next_step": "Continue the workflow only if mailbox verification and consent requirements are separately satisfied.",
                "reasons": [
                  "syntax_valid",
                  "domain_dns_present",
                  "mx_present"
                ]
              },
              "domain": {
                "disposable_evidence": {
                  "scope": "limited observed-domain list; false means not listed",
                  "snapshot_date": "2026-10-08",
                  "source": "castle/disposable-email-domains"
                },
                "disposable_provider": false,
                "dns_found": true,
                "free_provider": false,
                "mx_present": true,
                "normalized": "example.com",
                "typo_suggestion": null
              },
              "email": {
                "normalized": "name@example.com",
                "role_address": false,
                "syntax_valid": true
              },
              "limitations": [
                "Mailbox existence was not checked.",
                "This result is not a guarantee of deliverability or consent to contact."
              ],
              "observed_at": "2026-10-02T00:00:00.000Z",
              "status": "complete"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "email": {
                      "description": "Email address to inspect using deterministic syntax and domain/DNS evidence.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "email"
                  ],
                  "type": "object"
                },
                "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": "2026-11-07T18:11:49.358Z",
    "quality": {
      "l30DaysTotalCalls": 19,
      "l30DaysUniquePayers": 10,
      "lastCalledAt": "2026-11-07T18:11:49.009Z"
    },
    "resource": "https://api.oldcolonyweb.com/v1/email/verify",
    "serviceName": "Old Colony Web Agent Services",
    "tags": [
      "email verification",
      "email validation",
      "disposable email",
      "email preflight",
      "email typo"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retention, mailbox-existence, deliverability or consent guarantee."
}

What the leaf hashes

{"body":"2251ba3ee1d0d3e797772f0b9ee60aeb0f36f0c4ebc545e41cfb0c4c8781bc15","id":4164701,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1794170396251161,"prev":3964183,"subject":"x402_bazaar:https://api.oldcolonyweb.com/v1/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 2026-11-08 (183509 rows).

1. 0xb96532f7aabca6b7462f7bf6a232c2cc6f97d933eed6143c50be406d818ddc40
2. 0x76c9a9db9616f49f5ad47992d1ba06c3acab256add6b755e6ac8f92880a9c0da
3. 0xae4a6435467258eec41346f55d78dca5bbb21e80afd37e738655d270c945a037
4. 0xa41735dbbabc1b6051b5ea907d91477b15e1b8a103b797dd3838f53c664fc340
5. 0x6bda3d6c796095c95533b7323563517b1ab2d9fb732784cd6dce0d37489a4e54
6. 0x205679d21c96708b67cc018141beb897bf3e4d2475b22d7dc1df4a32df2ed036
7. 0x188ff9733cb5e915d266906060b6f336bc9940d0445dea606061c3b3ac1a2f29
8. 0x04ddaf54bd2961ca5b8f92d5f69606a13fa3dff097952017e091e45877bdf736
9. 0x140a1f4a968e8f11a81e5371aabad33ec95efb7dcc64d9818e601e003c3248ff
10. 0xf0633354f3715a3621d99729d61779cb638bd5d1597d7c95f958f2fcdc52f4c4
11. 0x36a1376ac1e71901de7d7a633ede2985a882e35584cd70ee185710e2f2075708
12. 0x81af4a886c354d623bd69478db480080dde1622d21dc359c766c5b1d528511ea
13. 0x678bb35f5c649ee42f25bfc68591996d224632b8bba270c2d0cdc93315ad6c8b
14. 0x7b6d8ccd7b9d06a82dac45c61590eeafcd32ea8a48cef64fe2e047d2ed708d0e
15. 0xb08e7a1a141319c9abe5b3142004cd0e97f72d69e6569ea2cf6374a53deeeab6
16. 0x274128ec5f837e2602d2e74887d9033f81856e8596e26f227d06cacaadcd00d2
17. 0x2d9754fdf3b1fe7b0030b55b1fe7e859e5c53291df3d09cef34b31423a50dc18

Day root

0xbf84ec37f88c5f23d2144bd7dbc1ea0f8edc93b3764a885a7164b7923ff3460b

Chained

0x9fea188e4965f50de727e97c40e18d5ff2c2ddbfd4f1ae65e22ddd6f676bccfc

Published

On Arc Testnet, block 71451618: 0xb5273480942a54cd07f291b8319e59976f8d9d0583181c764eed04c9b3f7a022