Evidence row 1225270

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": "2026-10-30T02:07:51.107338Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T02:07:51.107338Z",
        "updatedAt": "2026-10-30T02:07:51.107338Z"
      }
    },
    "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": "0.18.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.18.0",
      "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":"d3d37cf97e97070262e99314ddfbe26fa1943fbdac501aa0d0e8b9a28451e952","id":1225270,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793326490136891,"prev":1053761,"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. 0x99e1ede869ee7b71b101b6d2e250b09ee4d4a224ada4a3689a12eaaf4b67d576
2. 0x08e07f354d1891e246abad3ff4ae299df7e60cb9661c61262fa2f0190b7f805a
3. 0xa9d793e0a70662532bfad7ca9622b2a3a9d838fccca91635b759a7948b6fc809
4. 0x0d46f30e141339e834c23667baf7e336b13cc01748dda46dd54f3434ae128f27
5. 0x7667a530e27aa3c5a18bdb34e324944368f3e45da6736a69511f5c9ca327c0ea
6. 0xdd25c089c4334fa617864896d2848aa8e5c154299681ffca80d10f5343e93be6
7. 0xb4771999695a9cd5cae9ee9dcb0e1a956b96044b09a29807b9dc6d4b7acccfa6
8. 0x6ece424a795a9bb94964b76f668d6b12bffe30edd49e3b309c42dd6e30e4f0e3
9. 0x380c86c37d99ab6fad8941efc82e7f141cb618147b1c8b2c04abfa5a27079228
10. 0xa4cda3d46e4b08777409aec5a4f89a0e1d973deac22d3b4d7fec7f74e7eae641
11. 0x6e2208b075f25d9387e51e6cec0c43ad3d94d75a8fb78744e7d6e5c65a7623ff
12. 0x340ef66fb7c0c2f3672a2832b3b0629cac315b02de241800213bec4673f5a4fd
13. 0x372bfcb87c70d97986e37af71499d7b740f99f47cd88d8135364b140161cc6d3
14. 0x7db51cf84d41f2e07ef904fc1b6aeb666b2a2762de18ed12ac42d5938eb28dc2
15. 0xe722b5213af778d8f1621b8b0b61f957ac8d8bb43a780aed8989bfc357e5bc58
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861