Evidence row 200715

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Return a skill's description, frameworks, tags, context and ordered phase ids.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "name": {
            "description": "Skill slug, e.g. \"exposure-validation\"",
            "pattern": "^[a-z0-9][a-z0-9-]{0,63}$",
            "type": "string"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "get_skill"
    },
    {
      "description": "Load the methodology content for one phase of a skill. The phase is given as a phase id or as a 0-based index among authored phases.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "name": {
            "description": "Skill slug",
            "pattern": "^[a-z0-9][a-z0-9-]{0,63}$",
            "type": "string"
          },
          "phase": {
            "description": "Phase id (e.g. \"edr-deployment\") or index (e.g. \"0\")",
            "maxLength": 80,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "name",
          "phase"
        ],
        "type": "object"
      },
      "name": "get_skill_phase"
    },
    {
      "description": "List available defensive security skills, optionally filtered by family or a free-text query (matched against name, description, tags and frameworks).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "family": {
            "description": "Skill family: framework, intel, response, domain, governance",
            "enum": [
              "framework",
              "intel",
              "response",
              "domain",
              "governance"
            ],
            "type": "string"
          },
          "query": {
            "description": "Free-text filter",
            "maxLength": 200,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "list_skills"
    }
  ]
}

What the leaf hashes

{"body":"2d2387f20fbc0ed048ac292a9a5980fdd6b42bd2aba96b72a985705687be3f2d","id":200715,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793026052296126,"prev":null,"subject":"df8d2f8a-8a3e-4a8c-b252-41d6294fb8d6","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. 0xa675cfe4a98464ddacea1c4afd387712ec486f035c17b526ddf7a57d99a9d559
2. 0x985ee7f1c418b61b78cfa939bef100ef35d836acd1e9ad55f2d12ace0c1d6c21
3. 0x8155adac62ca95d75de65641b998e504aff6c5ef1c4e2307eeb258bc0ee1fc18
4. 0xd9ab8cf41680ef5da628e1953de22d97094c03fd50831ca49c6e1a23e12f2886
5. 0xdfdbc16e66c63c1e143d9e46f8bc4d10dda37ca7c3f40c701c59b8d1ea10a4be
6. 0x06fd5d821454a54068bc7076ab3b16efe249499c1db87442bbc13b138e59853e
7. 0x0ca9151d131681cc53f7f5cf8d73753f0c3d179e766348c92d97e19ae2d15edb
8. 0x008f7b075c94ed2886377bad40873b9ae9925b71abb9e8f941ee38a2544c7e45
9. 0x0f68c851b1cb79a5105a4fde13fb9158fc8cb576548b1b5c433d2f541ef01b9f
10. 0x93c7b1ac8754236471980488e2ae86b7135fed175d7852bf9b8ef708900f060d
11. 0xf9b4ada16aca6f9b63c09b94519008e1b94357a9d352c245023758b56b82d0b1
12. 0x1e464fcb484a1e782f9fe44be5118a9de934eb533c96ba10fc7d20e3a3e4711c
13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae