Evidence row 3986615

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": "2026-11-07T21:56:27.500929Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:27.500929Z",
        "updatedAt": "2026-11-07T21:56:27.500929Z"
      }
    },
    "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": "1.3.5",
      "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":"0f65755c71b919fb516cd0b1f5f6c3c73559439bfb5f2e70723deb9852ce6577","id":3986615,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090324289598,"prev":3957858,"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. 0xa1384fc6ffc5caefb5f658eadcec7b982de0e5cf3c2fcf5a16a339979bdf6de0
2. 0x556325cbbcf38ec6eb3338e23b524c2de184a16b98be83c93323a2beb23a158a
3. 0xbda5118105fff16ab0ebb67979f4789f7ce5f07e0e30d62cbf13119cfd8bdc6c
4. 0x33689223b256a7fd41ddb18632218d76df57af93df69119180f33deb04d0f497
5. 0xcbfea99708354ea7b496ad04fcb113d017ebdeca2722d2fdaef300267e48e0d4
6. 0x33a59c4c31a86b8749a3634ed29c4264ca975601b7fafb69efe6282aeac8ef81
7. 0x2597474cc9eb56004c147191230830fef89802648673f248f4dcf2541e814a64
8. 0xbf9f2af246f1746642ecbd9c59bb0e176b03e6c412feb88b9c8d4e9cddf3941d
9. 0xfbec83ead61e72744c0651d4b6c102ed330bd4abbd5c62079c9a222de29342dc
10. 0x14b4c0ddb532636a7cac95129ead9a884409e56f2f391d022206a767b7cbbb00
11. 0x7434c0d16fce7be0fce95f562ea6dab9c27902c07f5e25688b96c9c0c1c346e0
12. 0x5a5e0798c05616e1914c5822b622e658b1a40e6a8ff3f640d4041aaf5c2a77c2
13. 0x48980d105d947ab96380901aad7ac7a00fe18dcac0fbad9632657da5f529e9ee
14. 0x48aed00eefc8f84d1248774dbdfabcbf6a8a32d07ba72d541c50e091461df992
15. 0xd43f13f6774b4e9adf7a95c9811fb4fe9b9256ca73bc6f20577cb4cb147ba0eb
16. 0x39ddab61a3a1eeffcb2f54acf6ff87eaec375674f3e77f00c342826d4e1bf071
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa