Evidence row 28400

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.groundmail.dev/mcp"
    ],
    [
      "web",
      "https://docs.groundmail.dev/ai/mcp"
    ]
  ],
  "name": "Groundmail",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-24T22:58:55.075648Z",
        "status": "active",
        "statusChangedAt": "2026-10-24T22:58:55.075648Z",
        "updatedAt": "2026-10-24T22:58:55.075648Z"
      }
    },
    "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": "0.16.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.16.1",
      "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":"3ee7ba10a43725a850d2c46a3685f0279d5344f1ac71a6fd75089be59cadb9f7","id":28400,"kind":"listing","method":"baseline/1","observed_us":1793025359653021,"prev":null,"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 2026-10-26 (296695 rows).

1. 0x09dd41236e9774cbe4a39a5fdd7b4dc8e0c30b9cec5dd12390b228189be1f4ef
2. 0x82b34d0e00bbe8e8f988b7bc87aaf60b2bb4b99b236e2c7c3522b78b4a3aaf58
3. 0xfbd65c9830fa7a3b31fa62c8610ec859fea0616d219054ea61a9a1f21a4cbb57
4. 0x9b91b54ac43e883e1a9a0802f72dde2126c84364f888d6f21c54fd51451be01d
5. 0x6bce8234b0ec15bc4e7c500910c5125cfdef0bcb9be62e122b1dcb65d1e0ae22
6. 0x635cd4d9e5658d23ef19d1021571955df2f740ad28492c19e2dd34aa73a55d95
7. 0x7b7113fa5b6e7c74e2d5a46c69cd48d43d5c3b1d2294678b6e3a5722e91dcade
8. 0x4bc6ef9e04ad80c7614b9f49e8d82b55e617e730ace8ff077bbc5c977f028a49
9. 0x865290a2e672449996fd7d650c824f131e1d214a53ac32d8a9ceacfb7b89e062
10. 0x31de5c9c4a17610386cd10a6da460ea0ab73d655c0eada982d9b9aa8a43996f1
11. 0x31293c2261c535896c5ddb291cbd32a12a457794940e30c3d3e1ded3b9c739ce
12. 0x9e12233d6ee4faeb9271b0fc3c834797517d702f44add023149f28a0809c0aaa
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae