Evidence row 1257535

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": "2026-10-30T15:15:49.154577Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T15:15:49.154577Z",
        "updatedAt": "2026-10-30T15:15:49.154577Z"
      }
    },
    "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": "1.29.2",
      "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":"e3b8af33a4eea4b48ea7a3760841107477248a3918fa32859594b19bd62bd5b2","id":1257535,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793376929206740,"prev":1249547,"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 2026-10-30 (243099 rows).

1. 0xbb5cc1405d4bb3583945de03ae14fa6c6ffbd5d285706a709fa4598e4caff5a7
2. 0xac37b9bfc391e8c0a2dc00541cfeb2f576ce2b7aba02f5113fc87e9618dcd45d
3. 0x2f3eae7d1f61dc1c11386a3c810b5878663193ada36dd6b0792283ce305dc175
4. 0xb643f4aca59f30a1583970c9f67d09607c6eaee6b017941afef204fe3ef29a3c
5. 0xe4d35c3046ff5d5a1c3ee5387af78665472ec0890ca8fe3d9ee73e77dcb99dd6
6. 0x1eda06eb98792a1627056664efb04a2bcec65a4fb043fe63b910a84d34e6c9ca
7. 0x41443111ee9c7947fdbd1580d50d82b6ac2d2c890ca9623463d4cfd49eb9e423
8. 0xe31a331758d4cb718a79ac46df530d5c1f82cffe1d5d99f54b8346345e5014f5
9. 0x820c8a87a6a10b1ddbebde97e543ced64e95671c7d9865f7298b5771abeb253e
10. 0x09e22dba5e2dd07c8371f17b2f63ea9eb73290323be7202ba31bd15cf2f20e5d
11. 0x25c27142ad6fc9caf37957f29c81e9282087252bb5b1851c2ff657ba4dadcdeb
12. 0x8ca94aba4ade14ca276e7764966a63bb41f58eecc28e94bdae70ef1eb4b40db4
13. 0x9284dae9a7e06f703013033011cfbc40fdf815bacecff8ae80861ffbba56d6d6
14. 0x4ac91605f15503f7d7aa9a25d4e54c100a1a62c26e93a7ed87049569e871a9a4
15. 0xa0b1f6bc1eecfaf70581673c1a7f638b96d1769a5c578c460337f7db0dbe963e
16. 0x0c59b8770d2782eb535aefbb9b2f6810bab4757f51b37e00f5147713a1de9481
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861