Evidence row 303836

What was observed

{
  "count": 9,
  "tools": [
    {
      "description": "Check the domain BIMI record at default._bimi: the SVG logo URL, the VMC/CMC certificate, and the DMARC enforcement BIMI needs.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_bimi"
    },
    {
      "description": "Check whether the domain and its mail server IPs are listed on the Spamhaus (ZEN, DBL, ZRD, AuthBL), SpamCop, GBUdb and PSBL blocklists.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_blacklist"
    },
    {
      "description": "Check DKIM signing keys for a domain. Without a selector, common provider selectors are probed. Pass an explicit selector to look up that exact key at selector._domainkey.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          },
          "selector": {
            "description": "An explicit DKIM selector to look up (e.g. \"google\", \"s1\").",
            "maxLength": 63,
            "pattern": "^[a-z0-9_.-]+$",
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_dkim"
    },
    {
      "description": "Check the domain DMARC policy at _dmarc: presence, policy strength (none/quarantine/reject), and reporting.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_dmarc"
    },
    {
      "description": "Check DNSSEC validation and DNS health: delegation, nameserver count, SOA, and reverse DNS of the mail servers.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_dnssec"
    },
    {
      "description": "Run the full email and DNS deliverability check for a domain: MX, SPF, DKIM, DMARC, DNS health, provider detection, and blacklists. Returns a letter grade (A+ to F, where specific weaknesses cap the grade), a 0 to 100 score, and every individual check with its RFC reference. Set include_smtp to also run a live SMTP probe of the mail servers: the probe is non-blocking, so when smtp_status is \"pending\" or \"running\" call this tool again (poll_after_seconds hints how long to wait) until smtp_status is \"complete\" and the SMTP checks appear in checks.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          },
          "include_smtp": {
            "default": false,
            "description": "Also run a live SMTP connectivity probe of the MX hosts. Non-blocking: poll by re-calling until smtp_status is complete.",
            "type": "boolean"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_domain"
    },
    {
      "description": "Check the domain MTA-STS policy (_mta-sts TXT and the HTTPS policy file, mode and MX coverage) and its TLS-RPT reporting record.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_mta_sts"
    },
    {
      "description": "Check the MX records of a domain: presence, hostnames, resolution, null-MX, and common misconfigurations.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_mx"
    },
    {
      "description": "Check the domain SPF policy: presence, syntax, the all qualifier, and the 10-lookup limit.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "The domain to check, e.g. example.com. No scheme or path.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_spf"
    }
  ]
}

What the leaf hashes

{"body":"c92533d62089328279194b389db8ce86933f9a32abd54e7142e29f561cb36dc6","id":303836,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055577244165,"prev":null,"subject":"f7d375d5-ecd1-41e0-9935-1e83d43bd1c8","subject_kind":"endpoint"}

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. 0x6279931b4844bece0cae86a03e02e6b163160b4537bc61f4c0c24b42f1170366
2. 0x40454f744be7a3ecf62b60ebcf18550f67a51340996694c1cdf993d2b108dc58
3. 0x00392e6e2766f25f2d39b173cbb68e39e4cc1766916e8006de21e3ab91f90fdb
4. 0xb41809d8525a0fac4065651b0493a489e1c208acd5ae600883cefb88b7e70b6c
5. 0xcc33020b2acd319c9743a9ccbb2490454917d0bade395869677c34f46d76506e
6. 0x738a5adff27563f9f68e47766a1455683c1f8974200e4a7bfafbdcf5334a63da
7. 0x58ecb00b29a67b9e1bb3ddf5a1bc940bef144b0c13a7538b63c17ab39c815441
8. 0x4226b84fb1259735a51f2d1584f934904dfbcadaf36ea410375cbb9c9865eb52
9. 0xe3dec21127ba7d316156370fd220eba2bd6f5a93b45c91aa4c73dfc340e9ffe9
10. 0xbc3c355b950c7c23082f84a109d9c2ea6ccfd6ca5cc47b5103a3180b43e85bfd
11. 0x131755a2ea202f5e6a5e7b2b4223cbbcd0bee9398f637648162d1129112491ce
12. 0x7285c0b02d1aedd949b8ba0c7b2499f7121588ebdd4c96ef8725919bb84dd534
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae