Evidence row 1053761

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": "2026-10-29T21:37:45.965849Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T21:37:45.965849Z",
        "updatedAt": "2026-10-29T21:37:45.965849Z"
      }
    },
    "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": "0.17.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.17.1",
      "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":"01496473a512cb6bf6a8a7fbfbe43f046879c002eaa1253a3dc1ef2d70a04ebf","id":1053761,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793312085548283,"prev":1034651,"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. 0x69bf2d8287ec2c7977a3096b7c9f0537e67e03cb0b5cf2d121a5a22a3fdd8d88
2. 0xe35b94f5d5e6a79487c7ba5ced3ea9b03fb0f7b85e37cfbc2eec6c36f29e11a9
3. 0x8788f27959b06aa4fd84558dfd1a171613b7675b41da07fbcd4c09ae03eb4af9
4. 0xcc535a961baf6150788ae4740ccc2594dce6d53bab2354a8f8ca4b4517930110
5. 0x4103690f1a2bdc76bba4a6348a9475c781cb65012eee44e6b61d59cc46dba30c
6. 0xa0ed8d8907dc6b07cdf8e03e53e376bce528726ff0857321e3f9099eab0a24ec
7. 0xdd5f0e20e4de0efb8647c62ea192d038aa5119ee91eba0d9dcacce0ca22392e8
8. 0xd28638df2ee5708e6360dc794dd5472089bc5fb5877337818940c413905badcf
9. 0x8b6c39d12b3ce29c8d7968e9425c0fc239df07a1c67ec3696b5376a1c04f1af1
10. 0x0c361fb3b184c78ac40fcacf415a14aa9ef1badf307fe73bf05b69a5613f1934
11. 0x16963cc21f759f071ae0bfa26a5b8fb9109c46095ded022efeef9f38869c348d
12. 0x34927fba5659d7476b2ececd1a2c505e299813f72ef221044c8a736cb85df401
13. 0x0a70f94ba839c32042590eb96f6114034cb5b3ed8dd1b48fb4158efe13cb8084
14. 0xec2e740df411d32a080c5e65c8b0ca511ad665b213532cee58525a97aebd2893
15. 0x60b5befbd81f025904c8a3936b7ba86e3245ad5b37c615d01d42aa3227e3ed2e
16. 0xe2d603cd6f987214550319ad4fa39952b6098bc5c1b20893b6b80e8d82a79934
17. 0x91f12a2db1e2c1be07cbe4de3981a37a33051a36d3c3eee5a260804add6d1d75
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1