Evidence row 20228

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.sfxengine.com/mcp"
    ],
    [
      "web",
      "https://sfxengine.com/mcp"
    ]
  ],
  "name": "SFX Engine",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T03:33:27.548339Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T03:33:27.548339Z",
        "updatedAt": "2026-10-26T03:33:27.548339Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Generate sound effects and music from text for games, apps and videos. Returns audio file URLs.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://sfxengine.com/mcp/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://sfxengine.com/mcp/icon-512.png"
        }
      ],
      "name": "com.sfxengine/sfx-engine",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.sfxengine.com/mcp"
        }
      ],
      "title": "SFX Engine",
      "version": "1.0.0",
      "websiteUrl": "https://sfxengine.com/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Generate sound effects and music from text for games, apps and videos. Returns audio file URLs."
}

What the leaf hashes

{"body":"23e24959a5fd2eaa156c2c6df224402a91b71f6214ccf61f0d6c811990e9df57","id":20228,"kind":"listing","method":"baseline/1","observed_us":1793025335686728,"prev":null,"subject":"mcp_registry:com.sfxengine/sfx-engine","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. 0x8b4ea69edf097341fcadd3821279cd3c29832acc49c9b635f0b54ebbcdc3a5eb
2. 0x100bec6555994e33ee726a4fb95c2ad3997e3e3d207cb4d9eb424b69688d8bac
3. 0xc7a2988e7dea5c181de14e75ed594155cac4b84c4db9f63e43b19717a6cca51e
4. 0x038ff83a4a2110fb2e6e4210711239a3253c37aa914a9fb6dd24aef36a2999c3
5. 0x44501eb4e7f6bf3f365b1b36b6eed3f7ec7d203c8fb7ba1e4f689a1f5936fa6a
6. 0x9335f9e984c0393c0776bea32501e3aeee228f2cec996ad0f9b8e7eac696cb68
7. 0x1851cc5ec236096991c4abf9c358923efcf02233e07d87578c7bfbddf32f71b0
8. 0x7dd260ea084041256f1535577f0c6c635fe90d33efe4485724eed1e9db4dbda6
9. 0xee88fbeb53bd37ff3d897ec35c283d35063b90a3724c4194b03f948ccf02349f
10. 0x06e192564a33f8e5303c5b3f24c4a64be258d0a0274ef3cfee7f4221b7582bc5
11. 0x7d887da17795602ff54a7a2d145692904e47f8d3ab035b8db85d274d00bc9bfe
12. 0x8cb11bf3bc7d3a6f859c170a167821024ffc4758cdfd2cc96f61a3291aefb637
13. 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae