Evidence row 3944904

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://addevent.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/addevent/"
    ]
  ],
  "name": "AddEvent MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T09:17:12.985258Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T09:17:12.985258Z",
        "updatedAt": "2026-11-07T09:17:12.985258Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read AddEvent calendars, events, RSVPs and subscribers; create and update calendars and events.",
      "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/addevent",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://addevent.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/addevent",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "AddEvent MCP by usefulapi",
      "version": "1.23.3",
      "websiteUrl": "https://usefulapi.io/addevent/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read AddEvent calendars, events, RSVPs and subscribers; create and update calendars and events."
}

What the leaf hashes

{"body":"de232a20414cc7f87c603e06da9045d90176784699bb4d559e5f7997ea9ed6e4","id":3944904,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794043453284381,"prev":3774922,"subject":"mcp_registry:io.usefulapi/addevent","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0x63c436b5d9cddc381198afaab694a7744d4b00cbddca7db3bcc708d9a99607ad
2. 0xc90d3911643122c72d3149acb37e173b342846b8768cd646bc011e9b166229ee
3. 0x79e2526bb627c0373e97528c70e6ea3088e96041c3f2d2d0bc1131cfdb033740
4. 0x80f6715365cc8fe4d9dd9c2d1e6dae671885202c324b59f11d52775b4d62c9f7
5. 0xe4b6e151674cbdaf4c66596fdc8b56eee170bcbe9a702b0dcbe92e09e2f1cc54
6. 0xa717843435d451c2e4a3d33383a52d14f85ce6056d4a728caed27a6a74377952
7. 0x4d4fb7a59045f1088f615d3dc1e17e48b1ed5afcfc8c3b051fd57d4c842e8ad0
8. 0x8362312a6abddba2a1fcfeae4ca9b4751edfbc7b1d21c9d3b475bd28879b3593
9. 0x6552bdd307ee624abd9c3c6f8bbbbd0ce4aaab72c8eedcb18553c44d913ccd29
10. 0x77ce3f24dfe370a6f9659a6036af915314002cb59aa647aab84d3d0ecd7d6b50
11. 0x6cdf1d9477ed13b1c751a6debef3dcbf50124ae0be4431e3cd17943f07fff244
12. 0x6b91d4a5b85839e1e9102f953beff9267cf11525591d8fd47e2bd915be274e86
13. 0x1786c938edaf0cc932ce19344b27c31e59e4b9f596fd5ebd5a79ef17c3a17dac
14. 0x3c8b8590aa1491095b03c531400c6bb64d1d9d3fc078ffa5d834c3fe679a026d
15. 0x9127f3a0ab829dab5d80217ddc8d077053e20f2e260baed043c8a97478ebb2bf
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa