Evidence row 443071

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": "2026-10-27T08:34:49.046807Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:34:49.046807Z",
        "updatedAt": "2026-10-27T08:34:49.046807Z"
      }
    },
    "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": "1.25.0",
      "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":"f00bdbb3ab4256af83909249f4541fe44676a0896c197b891185dfa90c9095d6","id":443071,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093257826637,"prev":56579,"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 2026-10-27 (273461 rows).

1. 0x461cd6ca9e26733fd9622a565bfaa5fa1333198d77310acc02a2e97e65c6d457
2. 0x731fd05af726be6edf8998e4915285f9b2c7bab24958fee987f79da571bbca1f
3. 0xd4cb292665b27f7df41098df8487b9982a64568a20827c966308c23b2fdea297
4. 0xcf149be603941ee78d367d6c187a60b128cddd0984edc97906c5f56c61de8829
5. 0xb11c2870ca45f2e471a6c94f8938061e919b50270a9dd5f7f629acc0903fa697
6. 0x9ae31848ec48e54b4e68ea56d2d58232a6e69acba67672094592d3b02e5ee5fa
7. 0x70939d562c521fb764c4d9b95f7a79cd1cfa0cfe9956c30f5d55667e4ad30d24
8. 0x571a956668fa9fda3abdd7343ba98a69930e3ec81a86946f1a9de86f296a7f4f
9. 0xfbb8ae1a84d179ea259e79306ea7a03c40417cb5e941d742529a3b5f6e316f31
10. 0x5bfbe7ccdb4fc096a0e333ae82fe6e5aeba69315084d2a7593944eedb3a5b127
11. 0xb0aa948b8f1ffa99da7b7b4fecd9b7d539930ac590588a6deea36813f55a0423
12. 0x92473b1fa79263164c4ce7d79f93b1dc8a85f63587b51a81433d1ad19b285a90
13. 0x836e1796750a28d286ffaa8d273d250fe348c563336bf2d30cfaf1001d95f677
14. 0x80ede9e5d428e39db26928b1d08254ff1241f1d7e091fd2e57130fbb4423162b
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4