Evidence row 52482

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.songbrain.ai/v1/mcp"
    ],
    [
      "web",
      "https://www.songbrain.ai/docs/api"
    ]
  ],
  "name": "Songbrain",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-20T10:27:47.706773Z",
        "status": "active",
        "statusChangedAt": "2026-10-20T10:27:47.706773Z",
        "updatedAt": "2026-10-20T10:27:47.706773Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Best moments + video-gen prompts per scene, beats, tempo, key. Spotify Audio Features alternative.",
      "name": "io.github.songbrain-ai/songbrain",
      "remotes": [
        {
          "headers": [
            {
              "description": "Optional Songbrain API key (sb_live_...) to analyse your own songs. Without it, the example tools work. Get one at https://app.songbrain.ai/developers",
              "isSecret": true,
              "name": "X-API-Key"
            }
          ],
          "type": "streamable-http",
          "url": "https://api.songbrain.ai/v1/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/songbrain-ai/songbrain"
      },
      "title": "Songbrain",
      "version": "1.0.4",
      "websiteUrl": "https://www.songbrain.ai/docs/api"
    }
  },
  "source": "mcp_registry",
  "summary": "Best moments + video-gen prompts per scene, beats, tempo, key. Spotify Audio Features alternative."
}

What the leaf hashes

{"body":"c32fb5028d0b8432d33547814616575ac3e0025ce7e2f1f40550a4f72a3dcc94","id":52482,"kind":"listing","method":"baseline/1","observed_us":1793025419933999,"prev":null,"subject":"mcp_registry:io.github.songbrain-ai/songbrain","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. 0xbca8f7e4c2f46484174db78ae897b9dbd9c83369aa6c1a5e8468f895016dd737
2. 0x1bfa6917ad74483b3f66839f61c2bd199ee4a9022c89ae7b82fff4921dff0598
3. 0xfa6e5a914fc27ea61d92d06ba8bd0cd1925a414af7d769d06fe6a3de21b8f42e
4. 0x00eed81509ac08f12bdd9ba20e984a3f2fc9120939b384af15a97cb850fbd728
5. 0x9930770125f14b550d83eb79be059316d35b1a178abe279ad04a6a21eeed91a5
6. 0xd78a5388b51e1c9f6cf1033fb7e68526c692702818d9fd6e8a658d14d0aa11db
7. 0xc79e4f6bed96bf2fd0b16ea3bdce40fd4be037e62d1ac2e14376e2784d879ba3
8. 0xfcbb2ea1b72142518032d0b2d16f9f36e4d8807aec67ff06b295e089318bde73
9. 0x6740e058d40bad51176be383b2c6faff2d8446eb13d7c54f192b7c04c71d008c
10. 0x7096a251f9a01cad132ba398ebbd4caf06e5ec3cf4c8bdc56a7f1285eabd682f
11. 0x747da36f7781b2b20c53f35968bf28ef3b43376581ce1ca8987f1d7a2a347e61
12. 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae