Evidence row 1286871

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Free keyless DNS/RDAP enrichment preview for a company domain: email provider (from MX), SaaS detected from DNS TXT, domain age + registrar (RDAP). A real taste of the paid /company/enrich, which adds a bounded site crawl (firmographics, contacts, social), tech-stack fingerprint, office address, legal registration (VAT / company number) and the live multi-ATS hiring block — call get_premium_access for the full record.",
      "inputSchema": {
        "properties": {
          "domain": {
            "description": "Company domain (\"stripe.com\") or apex.",
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "enrich_preview"
    },
    {
      "description": "Return the paid x402 rail: the metered depth layers (hosted 10-ATS search, normalized compensation, per-company hiring-intent signal, company enrichment, email deliverability) with exact prices (USDC on Base), the pay-to address, and how the 402 flow works. No account; an x402-aware client pays inline from the agent's wallet.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_premium_access"
    },
    {
      "description": "Resolve which applicant-tracking system a company uses and its board token, from a bare slug or domain. Returns {platform, token, via}. Free.",
      "inputSchema": {
        "properties": {
          "company": {
            "description": "Company slug (\"bunq\") or domain (\"bunq.com\").",
            "type": "string"
          }
        },
        "required": [
          "company"
        ],
        "type": "object"
      },
      "name": "resolve_company"
    },
    {
      "description": "Free keyless email-deliverability preview. Grades ONE address in full (real output): syntax, MX / implicit-MX routing, email provider, SPF/DMARC posture, disposable / role / free-provider flags, a derived edit-distance typo did-you-mean, and an A-F deliverability grade — no SMTP ping, no account. Any additional addresses return only {deliverable, grade}. A real taste of the paid /email/verify, which returns the full per-email record for up to 100 addresses in one x402 call — call get_premium_access for the metered endpoint.",
      "inputSchema": {
        "properties": {
          "email": {
            "description": "A single email address to grade in full (\"jane@stripe.com\").",
            "type": "string"
          },
          "emails": {
            "description": "Optional list: the first is graded in full, the next few return only {deliverable, grade}. Use `email` for a single address.",
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "type": "object"
      },
      "name": "verify_email_preview"
    }
  ]
}

What the leaf hashes

{"body":"91c7d9b3391a32d07d69c6e254152318be5227eb3c18149ceb86dad9cdb95aac","id":1286871,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793388673079512,"prev":null,"subject":"21af44ed-5203-40e3-bff9-b1c430fd7f2d","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x2a26d165a8a06f1af9f3cd0faeabbd8db266b6683420360413662d819b2f3361
2. 0x77241cbaddc62e6198bc42e8cbcd3481fa3474fdb4949b9bcc8e98fb5e1bc2dd
3. 0x29580db49b9f2bcec3302e4064c18143d5681e8d017192320de7f944f4258725
4. 0x597381d38f42bad21125a601781ba03f41b0814e0bcbe4d7a4995ad095f968ee
5. 0x64f7018b920b29c767ee0d03461d8f08ee6730a083c41bf8dd6b191a345652c2
6. 0xdfe8bb3dfb1dc2b8685e461f2a8e3f71a0ff7e4eef9b8d8341ea401ab3c2ff0b
7. 0x9355b05276c87bf1e3f421a98a2c4d24b48dc3900f22635652f00aa57255cf9c
8. 0x9fb69f3e80d2e6226ba619c447c237f7846cc7ceed23b13a49f0f248ed4c2e18
9. 0x670932fc9d56c266a4ed565ebb4b14989b95fd7b2861b7c37d4b687e709ea7d3
10. 0x939a1d664fd44dec41b51b27962f6e59e8ae1f23d32d39f625345c190982a4fc
11. 0xdede4a4e576c2e881bff88d9b351eee88b50b21a2ee696a2e9156254a7d84e12
12. 0xc968599162d994e0c6d6a453743bfd940ee5c2e708b6e1e1ee2ed4a1537ba982
13. 0x1b9ae6ba8c6cfebe04f9f15a001e19b02d6df77245227331ce13f353b617efcb
14. 0x9f9779dc68f693114863e0dec3d1a44dc50e81c34bd4122e25a6a644a5c619bc
15. 0x6222037db785cc797fc8809e52e551d945c928d389b7ac947c037fb9af818562
16. 0x50ca74d7c8f26a46e9c3b8fb5e7f9ebcdfdcc1b7c863db3b6d2b7c12e24ca66f
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861