Evidence row 2564400

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": "2026-11-03T09:55:20.430302Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T09:55:20.430302Z",
        "updatedAt": "2026-11-03T09:55:20.430302Z"
      }
    },
    "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": "1.2.0",
      "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":"4d71cba201d886d5ffb3d2b7c37a70ed0d853ca4523745f1644c6a1ddd3e437d","id":2564400,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793701159693077,"prev":2546295,"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 2026-11-03 (425475 rows).

1. 0x199fe9dd062bca4746d4f8df02336ec43c29663aebd318d1a75e61ef4f26822e
2. 0x77fb20488110c0e70322b2b4a89cbb5a62e9aff66f1e89a61e09d4cff2ac6295
3. 0x191407f45f123b02330e02da57ed84ccdcccb3aff3ee5bcc2f0b61255e31a980
4. 0xc61671a5f33dbe3110124598a14b36a119c497923e70352949de2e7082817da2
5. 0x56d52292cc5f95df9f1237f5e91083ff7bcbbff16353ba9455ac4a892c762917
6. 0xdacdcb5da6201c6258ffc340116514740309af46413e4214ac199e3f337cdc7a
7. 0xa9054e74c8e4911e8c22882244f39284739c119b43d90c81f360e365919b95eb
8. 0xc1f2be85322d1881f74b08c931e5daa3f0f7a8d5fb24e3aa7219bbc4aea90ddb
9. 0xb18960e0db442122ea792c52c3e4c0177629a290af5f62aef923f89d4c1ad7f6
10. 0x9c2636f4272b88777f39642329218eb8988ab537a59a0f8d31657d050577b869
11. 0x65f87f295ad2cd7a726b3cce0739854fd20c0b007b5c868ff704490ed3e51beb
12. 0x0afedfb5d94e21e502c5ea2f88ca41ada9eaa1d8dee6056c446b424b6e1fabd4
13. 0x6393e3b006f758b9dc2efca97748e8b94b587bc90cac45f81eb08fb9398fed9a
14. 0xa1b9921bde76812f1ccbe5230e9921311a3aeab7f9d6861066c6dd5b532d126e
15. 0x711583ccee5cdd04f5adf1bada00491547d886e40ddf1799b012e27be2a663c2
16. 0xbaff679935afdbe869b23e88acf4edb06c80c1bc21fbe841145699495a3e2db3
17. 0xa82fcd0af08a38380e777cb578b71498d941c589c6401f31d445e1685adcc978
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7