Evidence row 256720

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Explains what ComputeGpu is and how to activate this MCP server (no API key on this session yet).",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "computegpu_get_started"
    },
    {
      "description": "Create a ComputeGpu account. Requires the human's email. Returns an API key (shown once) and unlocks all ComputeGpu tools in this session. Before the first deploy the owner verifies a card ($0, no charge). Ask the human for their email before calling.",
      "inputSchema": {
        "properties": {
          "email": {
            "description": "The human owner's email. The account and receipts are tied to it.",
            "type": "string"
          },
          "tenant": {
            "description": "Short lowercase slug, e.g. \"my-agent\" (3-64 chars, a-z 0-9 -)",
            "type": "string"
          }
        },
        "required": [
          "tenant",
          "email"
        ],
        "type": "object"
      },
      "name": "computegpu_signup"
    }
  ]
}

What the leaf hashes

{"body":"b7c58b25b66495be771cec47e5e64228a40409a3e2cd2e6e0aface51add430aa","id":256720,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793029313438592,"prev":null,"subject":"dc88e02c-de84-492c-a806-f246f750dbf3","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. 0xb257d3b78db7b6d1d7b773d6fd4ea8e297aaee93b1622b4266f862bee7e9584a
2. 0x5de74b5b9b17db0422fc73b8ae5919c68be2102dcd8b96c15f7bbadfbf985ef1
3. 0x1ecc1e86518e07ce943851d19dc2486829918708771615559d5cde2d93a716cd
4. 0x56660571bb6aec1ec19abf9350cf27c25bc19d1734ba529668f99459f84a077f
5. 0x0bf234d78effc2b44fee34fc7ff0388be4e16e923407dc3c145b67d43b9d189c
6. 0xa6182331a97398f5e85df472733b7478321b3e65cc8d711c58bf791fec8b9196
7. 0xdaf46939fa4636b4af7b99477c7daa485e664a331b5128b018a39651557be68b
8. 0x80b108989bf58eba4e8e57e4cc20ada47675ca81c2eeae7b82254bd69c2078bf
9. 0xc75e8167a9254eec94bbebb40aeef2cc19d84bebc85950992a84682d73ac18cc
10. 0xc6dd71e7d85dea5e09f179642fe5f62de05a435eb806a0e7894d08bd1f37f002
11. 0x08b0ee375f7c28afd23e265e3e1bed91ba37304e42eafa665ef4a7f785b3e7bf
12. 0x3d6ec9d5ef8daa604601742088e213da0a439db6eff6ce50ec3ffb264a60ddd3
13. 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae