Evidence row 1744751

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Does the domain accept mail, which MX hosts, is it a disposable or free-mail provider, does it publish SPF and DMARC (and the DMARC policy)? Use before trusting a sender domain or when onboarding a company. Example: domain 'noahsarch.tech'. Response: result with status (deliverable | risky | undeliverable | invalid | unknown), reason, score 0–100, the checks run, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. No logging of addresses.",
      "inputSchema": {
        "properties": {
          "domain": {
            "description": "Domain (or an address; the domain part is used).",
            "title": "Domain",
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "title": "domain_checkArguments",
        "type": "object"
      },
      "name": "domain_check"
    },
    {
      "description": "Find every address in a block of text or HTML (deduped by default). Free. Pair with verify_emails. Response: result with status (deliverable | risky | undeliverable | invalid | unknown), reason, score 0–100, the checks run, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. No logging of addresses.",
      "inputSchema": {
        "properties": {
          "dedupe": {
            "default": true,
            "description": "",
            "title": "Dedupe",
            "type": "boolean"
          },
          "text": {
            "description": "Any text/HTML to pull addresses from.",
            "title": "Text",
            "type": "string"
          }
        },
        "required": [
          "text"
        ],
        "title": "extract_emailsArguments",
        "type": "object"
      },
      "name": "extract_emails"
    },
    {
      "description": "Fix common typos: gmial.com, hotmail.con, yaho.com, stray spaces/dots. Returns the suggestion (or null) and which fixes applied. Free. Example: email 'sara@gmial.con'. Response: result with status (deliverable | risky | undeliverable | invalid | unknown), reason, score 0–100, the checks run, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. No logging of addresses.",
      "inputSchema": {
        "properties": {
          "email": {
            "description": "",
            "title": "Email",
            "type": "string"
          }
        },
        "required": [
          "email"
        ],
        "title": "suggest_fixArguments",
        "type": "object"
      },
      "name": "suggest_fix"
    },
    {
      "description": "Full check of one address: RFC syntax and normalisation, domain existence and MX records (incl. null-MX and implicit-MX), disposable-provider list (10k+ domains), role account, free-mail provider, typo suggestion; optional SMTP RCPT probe with catch-all detection and optional SPF/DMARC. Example: email 'john.doe@gmail.com', smtp_check false. Response: result with status (deliverable | risky | undeliverable | invalid | unknown), reason, score 0–100, the checks run, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. No logging of addresses.",
      "inputSchema": {
        "properties": {
          "check_policy": {
            "default": false,
            "description": "Also report whether the domain publishes SPF and DMARC.",
            "title": "Check Policy",
            "type": "boolean"
          },
          "email": {
            "description": "The address to verify.",
            "title": "Email",
            "type": "string"
          },
          "smtp_check": {
            "default": false,
            "description": "Also probe the mailbox with an SMTP RCPT TO handshake (no message is sent). Slower (1–8 s); some servers block it.",
            "title": "Smtp Check",
            "type": "boolean"
          }
        },
        "required": [
          "email"
        ],
        "title": "verify_emailArguments",
        "type": "object"
      },
      "name": "verify_email"
    },
    {
      "description": "Same checks as verify_email for a list, run in parallel with per-domain DNS caching; returns per-address results, a summary by status, and `clean` (the deliverable ones). Charged per unique address. Example: emails ['a@x.com','b@y.org'], smtp_check false. Response: result with status (deliverable | risky | undeliverable | invalid | unknown), reason, score 0–100, the checks run, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. No logging of addresses.",
      "inputSchema": {
        "properties": {
          "check_policy": {
            "default": false,
            "description": "Report SPF/DMARC presence per domain.",
            "title": "Check Policy",
            "type": "boolean"
          },
          "dedupe": {
            "default": true,
            "description": "Drop case-insensitive duplicates before checking (duplicates are not charged).",
            "title": "Dedupe",
            "type": "boolean"
          },
          "emails": {
            "description": "Up to 1,000 addresses.",
            "items": {
              "type": "string"
            },
            "title": "Emails",
            "type": "array"
          },
          "smtp_check": {
            "default": false,
            "description": "SMTP RCPT TO probe per mailbox (slower; some servers block it).",
            "title": "Smtp Check",
            "type": "boolean"
          }
        },
        "required": [
          "emails"
        ],
        "title": "verify_emailsArguments",
        "type": "object"
      },
      "name": "verify_emails"
    }
  ]
}

What the leaf hashes

{"body":"ee3b165f025d3ea73fdd40c472fff79e462a71aae296976eeb05dfba459efeb2","id":1744751,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793513904381903,"prev":null,"subject":"9af535cd-d4a5-482b-8efa-1aaca9a70090","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xe8e6cb79b023512a3fac3c02c18d6491411bf823f78e8f8e7e181850a86c5687
2. 0xa7e4760c072eaa0411e78c0b4fd4ee5bb8210610da1cd44be586152e14ba9a40
3. 0x3f5c3a6ffa3fcdaa9dadd5f507b996158647234f5db177b9da61fcae5cdd5725
4. 0xa5c9ad496cea30ff0fc81b2b0137f69c4f169cd2ca2ad484435b431c0660ccd1
5. 0xc33cd4406b03396f64a6aa6192ecd01701f86f076e86542c0dcd5d3fe5cce878
6. 0xc65037cb5724e4f8bd7c4d38a63f8de03fc0c96f57c3b51d1a57a4940324dbc3
7. 0xe5f3ba4d4f9d25a09ad617f04291610966ef79eca02ca217a2267f31c16a655c
8. 0xf3c42617e53b69e0191851a3a879e4b697134da0d71414220919a72b839674d3
9. 0x2e76b355d5d144030cda704984cdca684d3f1d33bade5d45b2c2a148377e052f
10. 0x8df611d79472678f47671b7042f08a3ca496e0b82f5854d99edf08e03bcaee1c
11. 0xe9c0fc3b1e69b315645a6a7fbc869d897ccb29b49ef9a95b1eef8fc24c17a450
12. 0xa1b3635993cbefb58f74c74567d4bf8407e2138aa7bd738bcbfea2169ff3e13b
13. 0x0634a45000fa6f73103fbba8bbeae4bebdb256b75effa591aeb1cdeebe8a0e87
14. 0x08ed21745c44c46e78fecd46aa9c74f653629b2db356d3eb07ea5f89f52ed2ee
15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90