Evidence row 1261874

Observed 30 Oct 2026, 18:38 UTC, by sync.x402_bazaar/1.

Kind: listing
About: source_record x402_bazaar:https://api.facts402.com/email
Recorded: 30 Oct 2026, 18:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: cd347d9a19641be0fe5477f2816564e68492506df85f8e75ccf914bd1c7e3f5d
Leaf: 0xe91056396659e3b4d090313eb40ba9a362a2a5badec2548d5142d97ac16dd1e5

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.facts402.com/email"
    ]
  ],
  "name": "Email Address Check",
  "owner_address": "0x5498b0aa90cd56f8962cbd136df3d3769c85f149",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149",
        "scheme": "exact"
      }
    ],
    "description": "Check an email address before sending: RFC syntax and normalisation, live DNS (domain exists, MX records, accepts mail, null MX), disposable/throwaway domain and role-account (info@, support@) flags. No SMTP probing. For lead-gen, signup and outreach agents.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "email": "support@github.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "accepts_mail": true,
              "disclaimer": "Syntax checked with email-validator 2.3.0; MX/A records resolved live via DNS at request time; disposable list from the community disposable-email-domains project. 'accepts_mail' means DNS routes mail to the domain (MX records, or its A/AAAA address when there is no MX: 'implicit_mx'); MX hosts and mailboxes are not probed, so the address may still not exist.",
              "disposable_domain": false,
              "domain": "github.com",
              "domain_exists": true,
              "implicit_mx": false,
              "input": "support@github.com",
              "local_part": "support",
              "mx_records": [
                {
                  "host": "github-com.mail.protection.outlook.com",
                  "priority": 0
                }
              ],
              "normalized": "support@github.com",
              "null_mx": false,
              "role_account": true,
              "valid_syntax": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "email": {
                      "description": "Email address to check",
                      "maxLength": 320,
                      "minLength": 3,
                      "title": "Email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "email"
                  ],
                  "title": "EmailRequest",
                  "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": "2026-10-30T10:50:17.709Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T10:50:17.485Z"
    },
    "resource": "https://api.facts402.com/email",
    "serviceName": "Email Address Check",
    "tags": [
      "email",
      "validation",
      "mx",
      "disposable",
      "leads"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check an email address before sending: RFC syntax and normalisation, live DNS (domain exists, MX records, accepts mail, null MX), disposable/throwaway domain and role-account (info@, support@) flags. No SMTP probing. For lead-gen, signup and outreach agents."
}

What the leaf hashes

{"body":"cd347d9a19641be0fe5477f2816564e68492506df85f8e75ccf914bd1c7e3f5d","id":1261874,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385517061049,"prev":null,"subject":"x402_bazaar:https://api.facts402.com/email","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).
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Day root: 0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
Chained: 0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
Published: On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861

How to check it · This row as JSON