Evidence row 738741

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": "2026-10-28T05:10:53.991489Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T05:10:53.991489Z",
        "updatedAt": "2026-10-28T05:10:53.991489Z"
      }
    },
    "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": "0.16.2"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.groundmail.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Groundmail/groundmail-mcp"
      },
      "title": "Groundmail",
      "version": "0.16.2",
      "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":"08675939055e8dd362fc3e3af9c7cdf7013e6b5c50c5c81efbb7216a03e5b4fc","id":738741,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793166080818253,"prev":28400,"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 2026-10-28 (231336 rows).

1. 0x4dbdc4bc6592a4337949acc9dc5789f45fe82448be7ba0de79bf1f0c05e2e8bd
2. 0x1c4d575bed16c9773a548f65a4287283c874c91859e976b2b8f2aa949b6f4bfd
3. 0x3b085f1242584b71b37c495eaeea5f1e7d87fad416080af74de0c90cba105c08
4. 0x11261afd7c06a4cbe68b0ebe18fd9ed667a8cc303ddc2c0a29ee72247c112bec
5. 0xaf810965d42df64792053b72acf10cb52ba7b0aff051fa78e06e918652d67a5e
6. 0xff3fe56167e355bd5b15724e453a786cfdef650f4005e4482f3e7ad36f746fce
7. 0x88c2b605b71ae76a7e56dd76fdf4fb9eee9d50cdb2ceceacee62eb023e59cd8c
8. 0x7a4edf9636c487311997d047d89288f48775785202cc64663fb7701a7486efba
9. 0x1b913e75e2bef434b893af78d605048bd87da8b10f2712abc372d5a8e7046de3
10. 0x24d8ae86e05ad8ed64aa590fb851b031125f39f47c177c22e8f462ba0bd9decc
11. 0x775c1a25188d9bce81ab4654c5655413aa5a0dd75795867ef674308ac3cb29b4
12. 0xbed44f78ddaac6d79b2fe676badcf4dabaeb86051fd7b7e1d523c8c1afdc608d
13. 0x902a2dbf47c33b77a0326d8eee14fb4f6ce8a9c74f1c79c2695723137f2064af
14. 0x8dce5117e7908d42b8abe04939e957eaffbae76d0f0a9d9ca7bb199e561aecf3
15. 0xd12637e9c035a4c3a66d0f0436dfc7bf3f13da4d17ea045b647d9e9beef1ef11
16. 0xa99a40fe210d675bb6ab72d4bb72ab40eb44ac345773c457fbe58e67a47b03df
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae