Evidence row 3957858

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://cerebras.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/cerebras/"
    ]
  ],
  "name": "Cerebras MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T18:05:13.880871Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T18:05:13.880871Z",
        "updatedAt": "2026-11-07T18:05:13.880871Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "List models, read model details and send chat messages in Cerebras.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/cerebras",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://cerebras.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/cerebras",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Cerebras MCP by usefulapi",
      "version": "1.3.4",
      "websiteUrl": "https://usefulapi.io/cerebras/"
    }
  },
  "source": "mcp_registry",
  "summary": "List models, read model details and send chat messages in Cerebras."
}

What the leaf hashes

{"body":"ef49fa2b9891bf80bbade202d1fe8390ff0531561357366163f425e80449be84","id":3957858,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794075887614246,"prev":3945000,"subject":"mcp_registry:io.usefulapi/cerebras","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0x05ebcb8e8b85aa41e997fe32aaf7fa83ea2afecd12cf3cea4dbbbe5ada42bbab
2. 0x0d7436866636989cd4788f9b06a66333acf40e61b1f7ed44d99b266d2811d3f0
3. 0x5fae27c83d9ad09ab7c8dd047170f13e53d1ea21490fa08da53403b2da5ed702
4. 0xea6d56c94485e20bdadb8193c8127976a0b0274e7f119f0850a04d61de91c948
5. 0xb988813406ad666019ded70c4bed2d0fe0ca3f956719a2d2effa1e9b638b5a66
6. 0x3e2df2373e0816bb071cc21437f264df85c7a3ecc2d5ac67a9d88005531ffea6
7. 0xa313c1b804ff69e9aa9c7ab94d2e4d6d3aeae79e3c53d7bdccff3ff6df3f65c9
8. 0xd82b475487ec41d34a1aa03ecf5f7a0ca6e900912521edb4a31abf89311cb7bd
9. 0x627b9ca96c7e54779fa725d3a24beda4670c5a703e79a06b445e3530c5f7e285
10. 0x97c22ef39b815558ed998ba222f53f2e29be17d29a4fe7921b29de638cc903f3
11. 0x77e2981ce18423d9c5f1b735447dae48e5708ba2b309647382cff5f8356cff98
12. 0x9a85ec52a21fe45012d29a90de2b68e4c9d2555bcdfeff1045579d45b3f28073
13. 0xcc8237523b2d5a08c4c820f7a8440fa8b577f989896eb892cba06931cc847cd2
14. 0x144e6f529cb7231bff37cd4bad2e3530f3ad930f9de9c48c0f73680bc7f17d30
15. 0x648a3baa51de8aa55066ecdaef86a2d63e9b16b533148da0c58eba70048b858f
16. 0x80bdd907e4cabf074c5e8d919e88abbc805de47d0c5c142e281a67157f82926f
17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa