Evidence row 21621

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://unrealugc.com/api/mcp"
    ],
    [
      "web",
      "https://unrealugc.com/mcp"
    ]
  ],
  "name": "UnrealUGC",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-08-18T11:29:47.43393Z",
        "status": "active",
        "statusChangedAt": "2026-08-18T11:29:47.43393Z",
        "updatedAt": "2026-08-18T11:29:47.43393Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Generate and manage AI UGC video ads through eleven typed MCP tools",
      "name": "com.unrealugc/mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "UnrealUGC API key created in Dashboard Settings",
              "isRequired": true,
              "isSecret": true,
              "name": "UNREALUGC_API_KEY"
            }
          ],
          "identifier": "@unrealugc/mcp",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "1.0.0"
        }
      ],
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer followed by an UnrealUGC API key",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://unrealugc.com/api/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/UnrealUGC/mcp"
      },
      "title": "UnrealUGC",
      "version": "1.0.0",
      "websiteUrl": "https://unrealugc.com/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Generate and manage AI UGC video ads through eleven typed MCP tools"
}

What the leaf hashes

{"body":"27182eef53414e994b14cb3f5a24b9f495add4ab716f4a5f127b3d2baca61256","id":21621,"kind":"listing","method":"baseline/1","observed_us":1793025340734204,"prev":null,"subject":"mcp_registry:com.unrealugc/mcp","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. 0x79294e88e948bdb5920aff1c33e14c22ba362799cae0d87e921df918135fe9d2
2. 0x78ab0a8ce3e769e72a20b8ecd030adcdd17b0e763d79b8a21811efb4afedffed
3. 0x9912f3f57ef1b2238d9e7878917e461256ec0973c70bc75659d3224714e5f145
4. 0x400aab22c99a7cd1d31c411db8d5356fcc414f533413a97a7357a63d29073233
5. 0x941dfb28865bc425b157e1ba957c3058eb169a0c050c16b500c63a493242b42f
6. 0x11efcd2d2cadf050a96b4874f9c8bce9118968fa49cb8f575b6b97af548791f4
7. 0x7c59c2d85fd68e8132c30b0e1e35a94cee9da7ad2e951496f16f42c4389ebb1b
8. 0x173ca4ae4e207764d705d816f1cfb2cef5b701bcb89b3fe2a9545ee37326a973
9. 0xfb28a0c1e73b9dd153467bccc5b2ecd9754f7117c5ea4979156a41118c1e97f7
10. 0x1aabd91bd058f7f63d4d33c5e8729922fd5f9d7ee7e3a2bbaa1ad12fa0d8bd68
11. 0x78977732f6810276b475c7ba4995e269c53c1218a49bb3951e04ede6049b4c08
12. 0xdcba35a3346e9c4b9ae1267cc5995998c2c33da9ef658e955eaae1589ebbdcad
13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae