Evidence row 3723253

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": "2026-11-06T12:08:47.016059Z",
        "status": "active",
        "statusChangedAt": "2026-11-06T12:08:47.016059Z",
        "updatedAt": "2026-11-06T12:08:47.016059Z"
      }
    },
    "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": "1.22.4",
      "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":"2dcd308b6c36697cb6dd27f8d046117a0b70f039730b163bf05fd37ebeb9f3b7","id":3723253,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793967736226630,"prev":3413972,"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 2026-11-06 (303443 rows).

1. 0x3e059c3b390b42d45dbcf82d20c5c021b3917d9d57e9dd7f1849a14c362e0e47
2. 0x35f509c73d723000e5cd219258a7f2d32b847d744ff9c05307eb99636fca194e
3. 0x1bd8ebecf5d166cd731c8b6a8ae7f5514380fe7e5610ebaf82b01f99d4be7375
4. 0x61e70757d0384398260d8746223336ce0258833c12b60cf4a614feb5b3393d2b
5. 0x72d7d2b1ad99abbf88c1dc1c260176df1d7885339c9f319eeff28aee620df482
6. 0x6d949b6028d4e71f6f11d259024cefd3e04467e67d11534db90be4838dc03d46
7. 0xcd474448579f7343bf0e9c23085f2f2a09a2a250a9cadc6e2a6952724912c3c3
8. 0xa53f99c0e9972cbc8d2864e93cd0f9f0f59452b916c905b969bb4b1ff9cb53d5
9. 0xe396d79d69297a8dc7026dd2fa487bd9c9ee1dde232127a64b88bf9cac3a8073
10. 0x98acfb18e8ca71c1a05b5dbd66abc109bf06ef0e3730f77bc8597d67ad28a44b
11. 0xa1a889f6aa1fd632acf9582101ce391dabfaae624253a004ef1c6234547788df
12. 0x5288a9334eb4b29f21a51190969364cb32784154601a126e1d9e8b4e405c6ac9
13. 0x59bd144c9e7342b3df8e59fc9509435c9555450984e97fefbfc08702bdaf57a5
14. 0x0391cd09482a72b233cbeae67d3b018b52668bdda462ad6890dcef531af5784b
15. 0x3e5703f087c9966ff9f302cea33450db9f9fde7cafb8269b22ded1b2a3da03b0
16. 0xdfedd18f60be5438b67a88cd42d31ead60bf5dbfc8d726e3d83be13474b3bd3f
17. 0x4a618d78b1cebba8beec4ef22aaac9187dcdfb39064e0be537ca2600abb90740
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1