Evidence row 1287908

What was observed

{
  "endpoints": [
    [
      "web",
      "https://docs.groundmail.dev/ai/mcp"
    ],
    [
      "mcp",
      "https://mcp.groundmail.dev/mcp"
    ]
  ],
  "name": "Groundmail",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T19:50:38.152433Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T19:50:38.152433Z",
        "updatedAt": "2026-10-30T19:50:38.152433Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Send transactional email and manage domains, templates, webhooks and suppressions with Groundmail.",
      "name": "io.github.Groundmail/groundmail",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Groundmail API key (starts with gm_). Create one at https://app.groundmail.dev/api-keys",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "GROUNDMAIL_API_KEY"
            },
            {
              "description": "Optional API base URL override (default https://api.groundmail.dev)",
              "format": "string",
              "name": "GROUNDMAIL_API_URL"
            }
          ],
          "identifier": "groundmail-mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.19.4"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.19.4",
      "websiteUrl": "https://docs.groundmail.dev/ai/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Send transactional email and manage domains, templates, webhooks and suppressions with Groundmail."
}

What the leaf hashes

{"body":"b4e1983f95a5db393861c5c495c6dc360013a2402969c8289f20a1c0766f7292","id":1287908,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793391338178202,"prev":1286589,"subject":"mcp_registry:io.github.Groundmail/groundmail","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x2764c4b3a10cb47962f8d0fc6e90945835071fe2b7e88627a8b05e61e81eb9fa
2. 0x4786d3b1b0ff6a713068e1985629fe71b0da413a071d8f1d0e4fa8c351058a2d
3. 0x85cb619429abf68fa18b8bd4da65677c9cda711d4cab41bf5eb815906ee411e2
4. 0x036cf02300a2e87898718af405ffaf4504571b7a58f07cb8c98c3701e11d2b03
5. 0xce0ab6d902d8be7af83d1dc4cb7a418b3d6cefc65292eb4745de405f7e04d646
6. 0x5437aa107a52d9add2442dda5edc561f8a9610e98bce3e713bc8dc998978b50a
7. 0x882ad889227079b6ef1cec8a5f667a9538aae48504b7e95c371da2b0eedae32a
8. 0xa12dd281761c257624c7cf9526350da393b743236dac5fd15184d40857541cc7
9. 0xa20bb6d538a8319c55d79764d685f55aa7d734213e3d306903d8886b3ff514bd
10. 0xdb601725bd6c50ce7fa7ec2a7dd3b1c2a80acb0570b4ac8b23ba9cd2c45fa974
11. 0xaa2f6af6be648a4c5f5e9d9aa3d8f1c90440a44db58733ae9c7c25a44129aa62
12. 0x724043eea07573125acd51c025da9f0d266d56f4633f715496f52e42e3ea1f14
13. 0x1b9ae6ba8c6cfebe04f9f15a001e19b02d6df77245227331ce13f353b617efcb
14. 0x9f9779dc68f693114863e0dec3d1a44dc50e81c34bd4122e25a6a644a5c619bc
15. 0x6222037db785cc797fc8809e52e551d945c928d389b7ac947c037fb9af818562
16. 0x50ca74d7c8f26a46e9c3b8fb5e7f9ebcdfdcc1b7c863db3b6d2b7c12e24ca66f
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861