Evidence row 1034651

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": "2026-10-29T17:09:34.550776Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T17:09:34.550776Z",
        "updatedAt": "2026-10-29T17:09:34.550776Z"
      }
    },
    "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": "0.17.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.17.0",
      "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":"5baff2fd0b45d58ee7c52e650e28b8344c1a61e1b1569c1c16e85f0f3a5fb92f","id":1034651,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793294012194077,"prev":738741,"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 2026-10-29 (242798 rows).

1. 0xdb6d7d913368595a24ed2c55d7594876b6fcb3420c64ff8d5b3b879c028fb500
2. 0x32b3b8c255b536c3098b10b2fa64e969b3f39771953220387d1c40629d902069
3. 0xafbc763e0e7e87d2bb5463d0c4ec69401582780df59745ddcf716734f6177752
4. 0x5c516ed84fb755765d8e8f10d19635d44169dc285db70b6a6821b77a1d1687b8
5. 0x1a353144c1f463e3387db8b7fde4af66584a0064c918c5b6edcbe1d5b63c45b5
6. 0xabb884ee29868468c52d05c45d2085fef321684db47d26b4ad9926b780c32ea1
7. 0x8b6218e039898458a96fd9703d476faa94a589c550865adc2285832f3ab273d7
8. 0x50a7b21172fafb51eb0dbd1c9698ad5a5e9b131b49add66ce12fcec557c097c5
9. 0xadc94cd43f3e4937cb975347bbb6fbbc50e01f3d43e606c63f072b1d466ca17b
10. 0x55a3cd597d149adc2503eda934a5b214dd15e78cd804ee73bf5410c6fdbb38d1
11. 0x409fd25ee3bf0c0987178bd0ee0df5a2b7caf2c56055f2e4a244ec98903872e3
12. 0xcca2c51ddf43624528a707497ddb2bcb1a2962304c7d792dcc5458ffe2ead3fc
13. 0xbab97b696ffe737616975d37e243af07fa246058d99161c165f9f96fde8768ff
14. 0xb75e183026f9112474e3710d846b63188d3bba750c3ad3feabd9a22ee7d080fc
15. 0xa7d3fa0a08edea990614977b51a6b3289c357a88d8ca06dcbfe67415a017c0e7
16. 0xa034ebc8d117fbf1ed466b70baa0478bf213b743e1a41cba1d2da7a9f310184d
17. 0x1597ec94933260048e5e583aff1ad0fd44cc49efcd0a994091ed5db4924d7b02
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1