Evidence row 1286589

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": "2026-10-30T19:08:07.919536Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T19:08:07.919536Z",
        "updatedAt": "2026-10-30T19:08:07.919536Z"
      }
    },
    "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": "0.19.2"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.19.2",
      "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":"e07913ff1ceb20e88e097e6d7d95895d10ee099aa50fc0678053c61dc0d01f88","id":1286589,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793387736927248,"prev":1228403,"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. 0x46ed0a61d3ec459e599779158964c447fa38eae10a150191293d97319dd46cd6
2. 0xeead5c2d50272434b1469808e39295b9c305045cebb570473044cd2b406725ae
3. 0x0ac094ad306c77e2ecf420ef9860252d2c637c02bc76a8de2462e83cb5fd930a
4. 0xa105611ab9cfd8af0ad5fbb6bb6b02766259ac74b833e4425c37569e75b568eb
5. 0x9338358f76074036ac73efce97dac5fdcbe14e953945a4801ebe4713f4145143
6. 0x451539380e260b75faa2ff24abb1aa098e694332e12e504388120fb249dc4ba7
7. 0xee3ef5f0bc8b4d37e53ee0ca43965b5fb58fe60acdd96e1543ee2c98f8738182
8. 0xf29ae749547d313f7ec0f3eec9dc5e721d779fd0960c2513722dcc7318b382a6
9. 0x41e1642760c70a94e148aaca342eca8c96c302291efbdd369591c7f00f2a00bd
10. 0xfaf2ec1d7afc39f38b0359c8534b2f412a64ee757f3cabbe71efd285c106ef0f
11. 0xa4d6b7840317e961c9d4f6ce8699df48acdc116a6a9c09392796f9c75a95727c
12. 0x2661bf6c2d2490ba443dba9bc41ceec4c1ad9c0ebb611a3f1f8d8d60a05175d8
13. 0x0b8a485e6ab0668fbad8011e734741b720cdbb463970428343e7f73238a809f9
14. 0x9ace81ddbf101c81e3033efcaf62a4f4ad2b7dc0b97b61a7adf81117108ff2f7
15. 0xa937fac4496d1d79e24c5f12abd33388ef710185b9d82165d4b39af6bd434545
16. 0x910a91495535ac1a9e959d27d607e185616d2d41b45bc7071c6357f426f372d8
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861