Evidence row 56211

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://simulis.io/mcp"
    ],
    [
      "web",
      "https://simulis.io/"
    ]
  ],
  "name": "simulis — marketing brain",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-07-13T03:42:58.686988Z",
        "status": "active",
        "statusChangedAt": "2026-07-13T03:42:58.686988Z",
        "updatedAt": "2026-07-13T03:42:58.686988Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "A business's marketing memory: campaigns, results, decisions, brand and audience knowledge.",
      "name": "io.simulis/brain",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer YOUR_BRAIN_KEY — the per-workspace key issued with your simulis workspace (request one at https://simulis.io/early). The key may alternatively be passed as a ?k= query parameter.",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://simulis.io/mcp"
        }
      ],
      "title": "simulis — marketing brain",
      "version": "0.1.0",
      "websiteUrl": "https://simulis.io"
    }
  },
  "source": "mcp_registry",
  "summary": "A business's marketing memory: campaigns, results, decisions, brand and audience knowledge."
}

What the leaf hashes

{"body":"6e4fcc5cf5cb7118ba8c79ab9de0d81efa0ee719a437c97267132d94ad231c3f","id":56211,"kind":"listing","method":"baseline/1","observed_us":1793025437463441,"prev":null,"subject":"mcp_registry:io.simulis/brain","subject_kind":"source_record"}

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. 0xf714f537b0111089e347e79722b8e5c466890228482ee1a90328b7138017d3f7
2. 0x82eb56368363fc9c0acf34725c34dbb41d0992cb61d24187451e37b62a894006
3. 0x3c92581fb9f4c7af3713859dd2490b52c605890dec15c12de10b75488f6daa43
4. 0x8fd4ee868e42c82a3e1c25e1fd2b74ee37f0b7fa47d0ce23f532bb221ced33b3
5. 0x7cabdc5b2152a3bdfcbf58de26efea885346f31379179245fc904bd3c5d6bfe4
6. 0xbcb0fe087ba9bc90d78424d72530226b16f0dcf76af386077959fad4bc9471c5
7. 0x4352a3d8c2563b6ac5d67924a31bedfbe746687c452aab0d8a0babde69650ff9
8. 0xdc039956abecbabfda50595e5cccab3d2aafa43c4320a9e5015c2956dbf17351
9. 0xf10672af823e446bee5a68ebc5abf4daf1d8b2e16a7f671d889a98675041ddaf
10. 0x4bd369376314bee2a95c823d57f8971e2392f7a996a2b051fa001ce2eaad6d9d
11. 0xd987c6ca981b8dd0b1b11d115372fd199a82de229e1bc3db5a7a430cbc5575be
12. 0x4eeaa4735423e7633e0aaa6154804920315f945b1e4ceabd29282ec021cce244
13. 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae