Evidence row 573873

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Inspect a user-provided domain's MX, SPF, DMARC or DKIM record and report issues. Does not change DNS. DKIM requires a selector. Uses 1 existing account credit for a successful check.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "check": {
            "enum": [
              "mx",
              "spf",
              "dmarc",
              "dkim"
            ],
            "type": "string"
          },
          "domain": {
            "description": "Domain to check.",
            "maxLength": 253,
            "minLength": 1,
            "type": "string"
          },
          "selector": {
            "description": "DKIM selector; required when check is dkim.",
            "maxLength": 100,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "domain",
          "check"
        ],
        "type": "object"
      },
      "name": "dns_check"
    },
    {
      "description": "Check an email address supplied by the user for syntax, MX records, disposable-domain and role-address indicators. Does not prove mailbox ownership or guarantee delivery. Uses 1 existing account credit for a successful check; does not send email.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "email": {
            "description": "Email address to check.",
            "maxLength": 320,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "email"
        ],
        "type": "object"
      },
      "name": "email_verify"
    },
    {
      "description": "Look up approximate IP location and network/provider indicators for an IP address supplied by the user. IP location is not a person's precise location or identity; privacy flags may be unavailable. Uses 1 existing account credit for a successful check.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "ip": {
            "description": "IPv4 or IPv6 address.",
            "maxLength": 45,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "ip"
        ],
        "type": "object"
      },
      "name": "ip_lookup"
    },
    {
      "description": "Check a user-provided phone number for carrier and line type. Optional US/CA caller-name data is a carrier listing, not identity verification. Uses existing account credits: 1 for landline/VoIP/toll-free, 3 for mobile or unknown; caller name adds 2. Reserves up to 5 credits before execution. Does not place calls or send messages.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "caller_name": {
            "description": "Request caller-name data; adds 2 credits.",
            "type": "boolean"
          },
          "number": {
            "description": "Phone number, preferably E.164 international format.",
            "maxLength": 40,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "number"
        ],
        "type": "object"
      },
      "name": "phone_lookup"
    }
  ]
}

What the leaf hashes

{"body":"f6199833227a252a5fef46f2f5d089b47c4c155cd596b9a5c28e68bd3af0968f","id":573873,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793141316268170,"prev":null,"subject":"f6286dbe-29b2-40de-9651-4bf6fac28c5d","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x113fb9d65b121a146123342fc805d2850efead4c74c51a8e81523dbefecccb82
2. 0x0a4dc1e0dad3eb553f3d831a7db67e0f7851361b7c51f7a698d987bacf794d1d
3. 0x9e47a77eae129f5ae5912f4e655b0c941029cc7719ab4cd355dadd8a73e207e7
4. 0x7b6bfbc19392c347007c26a9a2fc527d584a36e952465bddec80ef7a1de462e0
5. 0xae2f187816b56061f2b09578d0b89726109776978132429013551623b418651b
6. 0x2f9408acb4521c057d197a4e55997661a6d0d767af3cf2494e9ac5a25ffd7fea
7. 0x8d9af2ce42b00c72e5c1a3dd722ca9f5d22fa4dba3668619ad978d87680d5f2d
8. 0xa414edf662fb165d994aeb53986c1586b5bc614368b95addd045870d0d08258b
9. 0x72f4fedd15ed1a8156e583ec629f3c38be3b434f038b001a47ada40d2ec746d9
10. 0x295813ba553f1314ad9c6e9945241a70d67a6cf1b76cbc8bb24024c2da32b553
11. 0x1f45fb42c8950b8677f8b081328341df05c76a2daefeed7f5101116aeb98bd62
12. 0x0d3ea2b5e8eb21cf4cb25a0567ff70340d50d07631267f35ddfc7cd1de74eea5
13. 0xedf6ab3c3733ce137d888d3e5f7006ba77ab04b8f1fe576519f7b056959665ee
14. 0x52c5141da0cbee106a30396ee7d1360fd22f55084aca2ca436c8007892775670
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4