Evidence row 1828798

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": "2026-11-01T20:25:54.852113Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T20:25:54.852113Z",
        "updatedAt": "2026-11-01T20:25:54.852113Z"
      }
    },
    "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": "1.0.0",
      "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":"8ffd545ba48cdb49965e53c2b1ef0495b7f622f1d94a13dc42d9c3b19a6a3274","id":1828798,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793567869138841,"prev":null,"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 2026-11-01 (302406 rows).

1. 0x724b2a01810fe3f0adf7a8ffc03e25aed76ecc97f980453f23e405e048c38054
2. 0xcec9ee381cb22a3bd57485b25a7f4651c7c5c0e4f382c113e03bd0fc2956c08b
3. 0xc215a3000c4d5c579a9a1a99b4265c8cd098653a69a3eeeade333923f657f0a7
4. 0x9f06796fa25abc3bf1b85be58046158c064effba07d3039cf73169ea05330989
5. 0xf8b79b0bfa7f00028dd90867600eedcf9877269895a1b14ac8df3e2040298909
6. 0x336874f1e3579a68c1140db97b8b5b88a659c3484dc37914043f958893fe2fdf
7. 0x362fb8971ab1c025db37156a9fb6c78575a95b83223573836576684198bb3424
8. 0xcd068588b39bb492fc97d8dfd42a1c7f860478598d39deaf440ca03582a764bf
9. 0x3cb89b610a8ba8880d9046024383b59fab846d637d824015ebaa7c6e79765874
10. 0x3745860491ab1706c63cc44a3dcaacc3b6c7a3a522db8c081a6ad5b6a712aee1
11. 0x0fb846fc6cb3bb37a7325bc2c1e41cdb2d9db3e5f994723c7035a963564b3415
12. 0x9225199f9f9007724cfab30f8252870de214e3fa4464c9b48797718fda302667
13. 0xeed7e951b5e4701a6d9e1ccb44369bdaeb14efaf3655042a73f8487da4230bf1
14. 0x3c3408392402b125bd2c2cfb11c655ba3e5ef4f456caee26d4ee38a093e93c53
15. 0x614dbc600bca0766e288d2a5ebb7709ac565230ac6acdc88a5e4a7a5ff53c58e
16. 0xe329dbfb0db2c7f35334e66970a8ee37ee2d3356d34d692c10f84b6f7de65a35
17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90