Evidence row 264373

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":264373,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793034146466201,"prev":null,"subject":"0c3be041-4c7b-48d2-ad6f-7bdd0d606940","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. 0x748a4345d45768018bbcb103b3d615ad1b12beea74bbb0879a8758d0176f5a25
2. 0x7ed2988e1d644cc617da30221a19c696c4ce61a7876f663d740badf511234074
3. 0x41165e2ab5d81713314472c040bb995f3808a86535f0c9d3690f13405be201c7
4. 0x9654dfa13141e8ed86e2995a36bf82abea5795dabea1a2a293f59ea0a136ed7d
5. 0x3d19ae7d01fc54c8c193fe32fbf2713f78b7fdb33033ae7fbbc3ba7eea930a72
6. 0xe164081a894173697e5ae5dfd55e9a463580b9320c6658fc818969fb9d64ea50
7. 0x25babb765de8b128b3f074c08b07ccd755c35cc706052a55348c27049a9347bf
8. 0x755695e6d47e306e6f8b40601acc00e57c3807ba727243ebc2686996cd2e4e68
9. 0x4536cb9b4ee0e281b6d6c4e8d838ad22d57a82596d7ecf105570e897d69cce29
10. 0xeeb27e00b2f1b77815fcef94bdfe05e33ce9324a8f8948c0770868e4d010c7b9
11. 0x9adfaac1e332051e6999b9b702c6d539c2d639f94fd57735f2ddd441a4b5230c
12. 0x3f193b47c78cf4e7b9e4988cd716854b0e1011e5fcbca161f5a885f1aa02857d
13. 0x06064dc1eb2363bec8c2a752e0a28aafc4bf0cb21d1b1b755821c1575bb77a96
14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae