Evidence row 2189072

What was observed

{
  "endpoints": [
    [
      "web",
      "https://sellat.app/developers"
    ]
  ],
  "name": "Sellat",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-02T18:16:17.408878Z",
        "status": "active",
        "statusChangedAt": "2026-11-02T18:16:17.408878Z",
        "updatedAt": "2026-11-02T18:16:17.408878Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Proof of existence for files from any MCP client: hashed locally, anchored on Polygon and Bitcoin.",
      "name": "io.github.skanthemore/sellat-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Your Sellat API key (sellat_…), from sellat.app → Dashboard → API",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "SELLAT_API_TOKEN"
            },
            {
              "description": "Where certificates and evidence packages are saved (default: the system's downloads folder)",
              "format": "filepath",
              "name": "SELLAT_DOWNLOAD_DIR"
            },
            {
              "description": "Another Sellat environment (default: https://sellat.app)",
              "format": "string",
              "name": "SELLAT_API_URL"
            }
          ],
          "identifier": "sellat-mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.3.2"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/skanthemore/sellat-mcp"
      },
      "title": "Sellat",
      "version": "0.3.2",
      "websiteUrl": "https://sellat.app/developers"
    }
  },
  "source": "mcp_registry",
  "summary": "Proof of existence for files from any MCP client: hashed locally, anchored on Polygon and Bitcoin."
}

What the leaf hashes

{"body":"0d18c7d74bc1657ee31fb3b389c82e8a853b88d2633183979cb67c52aa4dcd8a","id":2189072,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793643522987717,"prev":null,"subject":"mcp_registry:io.github.skanthemore/sellat-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x3c801a09c931e84cb85a0360887c2049b39fe745873013a48e8771588282efb1
2. 0xbeb6900a7a27fb19bb38d6dbb1b4dd4a769962ad9d55bc521d5da9b37ec22bba
3. 0x50282126029c2470ed0f6e2e38a92589532caa24130aea27402560fd0615da72
4. 0x489843c25b0dd313e02e6b25dec143c8c512988203860b926f6d0e1168b83ac8
5. 0x3a84a355b493a15bf82eaf08f4d29e537d919e9eca4b89ad947dc91915749219
6. 0x19b62bd4f135b8f911399e24d80ff66d990947b9d4747f83eeb1ac0ceeecb74a
7. 0x64ff00c557f6016adb8463353c00e4c65a664c632b0d6f41a4e5b795a9014207
8. 0xf465adf0e4acde66d7158772f6330b54e93021052a8553438a6f37e08646bf21
9. 0x08a88737b816664aef235c31817dde8188e2804149a5e06ecbb96c3aaaa06dc7
10. 0x4fc1fae4140c19cfaec54fbd600a9585a48800444170471c0a727ee24a157221
11. 0x28b681f66b8813ea88f84e682682d3e566e64f215d6dcc5b3b36b78a97050a02
12. 0xbac6cdbbc8a23e8233870d7aae1d614c0c1fe809d0e40a72ec73dff09341aa56
13. 0x507a2180313be0729754aef4a9f5ae0f5f1b96b322bfe83831a668afc9bd9d5e
14. 0x637ba5f029eadccf80c2665ace422cf50802b8ffd21717811c25c8f068f65dc8
15. 0x8448bd1fe3c2d48b62a118ace4a5cb82fee53586dd43d776c2526ad844398919
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af