Evidence row 800698

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://emailoctopus.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/emailoctopus/"
    ]
  ],
  "name": "EmailOctopus MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T20:04:46.74295Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T20:04:46.74295Z",
        "updatedAt": "2026-10-28T20:04:46.74295Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/emailoctopus",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://emailoctopus.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/emailoctopus",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "EmailOctopus MCP by usefulapi",
      "version": "1.27.0",
      "websiteUrl": "https://usefulapi.io/emailoctopus/"
    }
  },
  "source": "mcp_registry",
  "summary": "Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus."
}

What the leaf hashes

{"body":"49b7e428c5d60baab1dc452412066cbfa8d997e9e8766dc58658fd4c4c7a9208","id":800698,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793218351408221,"prev":795677,"subject":"mcp_registry:io.usefulapi/emailoctopus","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. 0x79449375012554183f4cf7bb5b4e7834050cf3f9dcd303c2ac6f44fbfe974c75
2. 0xb3d77908f7409a7567d273b69854e53143a1268faaa2ab17821ff20e50dd0cd7
3. 0xa2c94ebb58c1bff7752f7c700820d6625deea1d60fb3fe70be41e4283e7dff4d
4. 0xfb047f6b44e426f0fef45ae8acf439d0891bdc4a31e5fbcd58740975da71603e
5. 0x9711cc7b523be09f1e75e108c368629dde192e23008c8d78b35db232e424cdaf
6. 0x849af10bb85d8e3bbb0b18c18700c4760c59dcb1791af40744862278f0e98ce3
7. 0x2e91d8242ea8ed86e4b49233478c8cbcb96ff5c421be511327759552b7d685b7
8. 0xa2c5d628cc1ad9f392208395036ba83b058cbd9d0ccb33ca36e154c549668e9e
9. 0xa1204a2c55d008ae7e23cee676d833ec65db043a594c82a8aadfc8691cef7b16
10. 0x66d68c78860c1445468094a54d8011999f780bceded1a27939a169a26cf26f54
11. 0x15d8ab6b48c22d68202fad488a3d460412e3d43df7bc99f0b6e0e726e938dad3
12. 0x14bc09b6df5a608be5eb21fd732d89ed12cec17a5315a631f36ba8d1ba314ab3
13. 0x95d7bc27dc9ea43e607251bd7e1cdfa9e00b59b71051b5db78fe06bf25becc5b
14. 0x40581185279a8bf075dca3a4c3a5648ec6f62098ba7402cbc097d5cc707e0840
15. 0xab4e84d781dccd579dcf5c47a356a4a2e6cac58a2aefdf3543a3fa15238fa4db
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae