Evidence row 209400

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Find available surf sessions at a pool. Returns date, time, skill level, available spots, and a booking URL. Filter by level, minimum spots, or time window.",
      "inputSchema": {
        "properties": {
          "hours_ahead": {
            "description": "Search window in hours from now (default: 192 = 8 days)",
            "type": "number"
          },
          "levels": {
            "description": "Filter to specific level names (e.g. [\"Beginner\"]). Omit to return all levels.",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "min_spots": {
            "description": "Minimum available spots required (default: 0)",
            "type": "number"
          },
          "pool_id": {
            "description": "Pool ID — use list_pools to get valid values",
            "type": "string"
          }
        },
        "required": [
          "pool_id"
        ],
        "type": "object"
      },
      "name": "find_sessions"
    },
    {
      "description": "Get the available session difficulty levels for a surf pool (e.g. Beginner, Intermediate, Advanced). Use the level names with find_sessions.",
      "inputSchema": {
        "properties": {
          "pool_id": {
            "description": "Pool ID — use list_pools to get valid values",
            "type": "string"
          }
        },
        "required": [
          "pool_id"
        ],
        "type": "object"
      },
      "name": "get_session_levels"
    },
    {
      "description": "List all supported surf pools worldwide with their IDs, names, and locations. Always call this first to get valid pool_id values for the other tools.",
      "inputSchema": {
        "properties": {},
        "required": [],
        "type": "object"
      },
      "name": "list_pools"
    }
  ]
}

What the leaf hashes

{"body":"97335945ef82fd31370181009d8b3a1fd8ee1bd9a91ce11fcb3d30d39e795464","id":209400,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793026416106295,"prev":null,"subject":"6d2dbf48-bc2d-471c-84f6-895953adf9f8","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. 0x0c07ca9095f74c0853b119e83bf3c60f207e27fb5bb4a00cf249ec03ecda0104
2. 0x1100d74f2cd0d1f414ec882e68b05fddc4c3f51eee90bf68595bed6f7bb7c2c5
3. 0x4dc501d9938c2bf7a477292d85f07709b8c1395fbbbb037e01f4c1661689ae7a
4. 0x7f4e04bf0be5978203d40cded3fc6eb5621471bbfb810b007a3dd659ef447eb7
5. 0x2a45387f0bd90239e26adb412d539f48793fd5123f1c46ea164dd761a5c6395d
6. 0x9817195c7b2595093d5697279c5f3b05636c044f157c23d8798237863b063c08
7. 0x6e89e3eefe15935d94ef301d6b0a5486410444b5c771d34fbaa499c1cb053efe
8. 0xa7625a099f5e01601bb163ab4a9402c8b0c28de5987b482d890635c8c265b2ab
9. 0xa445a49692c3c1c8ba44a66bbf44ce0a6a335ef3f0311738b858660e8b595702
10. 0xbe1b36b968b56faed4c267ac55542429bece302d9dc696aa907f7a42f10746ee
11. 0x8eb597b47b241899ba9947d79964713d71582858e40e13030f7b428006b500c7
12. 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae