Evidence row 261156

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://app.summabooking.com/api/mcp"
    ],
    [
      "web",
      "https://summabooking.com/ai-assistants"
    ]
  ],
  "name": "SummaBooking",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T15:59:59.5854Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T15:59:59.5854Z",
        "updatedAt": "2026-10-26T15:59:59.5854Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Find free rooms and book, change or cancel them. Sign in from Claude, ChatGPT or Grok Bot.",
      "name": "com.summabooking/summabooking",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://app.summabooking.com/api/mcp"
        }
      ],
      "title": "SummaBooking",
      "version": "1.0.0",
      "websiteUrl": "https://summabooking.com/ai-assistants"
    }
  },
  "source": "mcp_registry",
  "summary": "Find free rooms and book, change or cancel them. Sign in from Claude, ChatGPT or Grok Bot."
}

What the leaf hashes

{"body":"16239f43b45e30fe5b7589dc7b6a7be3e482ee77aa241f61b19760f0fc33be4b","id":261156,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793032167497203,"prev":null,"subject":"mcp_registry:com.summabooking/summabooking","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. 0x8f8fd2942a0fc479c3b7b428aa2943facb8ede9d29eed6a1ff0b50dfed254e62
2. 0xe5cc92e190a039a4ac9c3a546c83ce14d5746f127581dafc9d73434ef003dce5
3. 0xddedfb6c8c8c78cb1588fd869c2fabe523cd58a9fafd58e9718a8ef59270f187
4. 0x4cf0970591f9ab99f69d6379965bedd083fa40289be97eb895757e605126c520
5. 0x10b6a5254b857814ba9743ef6c5cad2107c4f878256501d9c8931b3e450f1fcc
6. 0x821b17660ecad5bb0522f9df9e44085c386ec4f0117014503d755897eba1c83d
7. 0x5eaf259250eb06330ea8549507afe8bc61e378f3fb2cc63853495ad6c295d4ee
8. 0xce642fca08a4bf7014d6f108d96f18cf1571e0c9a42b6028091e0b70ecde7f7e
9. 0x157b9bfc6bfc169bd02722bf711f0626c972beed263cc5361d38e742e0eb0535
10. 0x008d45ed99bece5d0babf3bd1d6fb4a93a70f99077db6328a9bbfbc9519f9600
11. 0x4ef4c3a70c6b26977cbaf534a1ab9edcc651b2d385e682cd5a3f54a060ec0018
12. 0x4634efb8094d1dd2874013b832ad8653e49400f57bf98efdcc5f925ed08d0f5b
13. 0xc0cb184c9bdf71abcf18fda97bd59289153d120dbf8fee9f517b63bf303deb95
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae