Evidence row 222307

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Adds two numbers and returns the sum.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "a": {
            "type": "number"
          },
          "b": {
            "type": "number"
          }
        },
        "required": [
          "a",
          "b"
        ],
        "type": "object"
      },
      "name": "add"
    },
    {
      "description": "Echoes the provided text back to the caller.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "text": {
            "description": "Text to echo back",
            "type": "string"
          }
        },
        "required": [
          "text"
        ],
        "type": "object"
      },
      "name": "echo"
    },
    {
      "description": "Returns the current server time (ISO 8601, UTC).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "server_time"
    }
  ]
}

What the leaf hashes

{"body":"4951c81eae623066ec634e87674cb1c62aff62d9cfafe1d62724790b180ed89e","id":222307,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027955193176,"prev":null,"subject":"43ff7e31-6665-4f32-b9a2-ce1c354ed7a4","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. 0x5e7d09ab9cad34d849e24c4729e4927a0d7345bb56d0d73b3ae44c453148cacf
2. 0x0e64795eff2b425b4da682d23ceb5947bced763182e6737a559dfcb149ff20e4
3. 0xccb0616914e9c76147f368a55f79f00e7ce45b63a43a657472f2b69a788b56a8
4. 0xa8645156eccf11b6300b2f0ad407d95d7b4fc76586fc6824dafa2861131bb501
5. 0x3fa08bb87027ffa43f3e24171e5e1a40ca255847c61eb44629b993a58cfed58c
6. 0xd076ece5857135844945241901813ea3bd73a69cebfa0fce175ea5f0320e57b4
7. 0xfe0fdfeea11c13fda3343fc954a7dbc162d9b9bc9d0bcf923c222fe4eb509bb4
8. 0xa0583da3bb70b728d934b5f97f69c956fc5b5cc4d012759c615bdb666b0962ad
9. 0x77163b46f4e52a08632ea8c24bbe9055658e8322d1f228a48ab784b218719e7a
10. 0x33f025c13618ed53fc05a5cb528fef06abae42e7afa58ecfa04868e98e6879bf
11. 0x49cc8f2035ca48165d187499d4442647d0afe9d3c61547728b03e4a0494752eb
12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae