Evidence row 2129981

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": "2026-11-02T11:22:49.120332Z",
        "status": "active",
        "statusChangedAt": "2026-11-02T11:22:49.120332Z",
        "updatedAt": "2026-11-02T11:22:49.120332Z"
      }
    },
    "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": "1.21.0",
      "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":"39002c9eb4287ef46f6dee362fcc5bfa43166165499b2d29d86eecd999895965","id":2129981,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793621908326643,"prev":1541068,"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 2026-11-02 (444186 rows).

1. 0x11761e55e9d4d3a69961686c2a71f61b529f0a0b461d99cca63d32d5359be719
2. 0x3c509777332dfd4a1547373ef6cef8ba6a3657f650e685c02c85c3e514d78a65
3. 0xe6407b6978aa5cf68fdf029f7929047961347bcfe2f17234f8489e3ed80c6463
4. 0x30e64191e009ae36dcfa48994c5c27cbae08886b6c24f71c61ad2171ee8751ee
5. 0xab7bf86dd42438f42917abf1deeb5533fa1f0f4739f3c84101b1368fe2250ea3
6. 0x518d106f6676662ce25940358df9e1afb61a81f03b0a0cf40aee12a2f2780811
7. 0xe09e2080b2c053e0b035045483c43b2f6712f5531f3b3fde65dad7f886e7c960
8. 0x342ff4416043186bc6861c80826b1bdb500773fd0001747768c021452854d648
9. 0xd42eb34fcef6e99578c42e45868a02de6da414f8d1cfd6b4a18547b8aa9a8dee
10. 0x4744c6e8ed8183ac51bd40be5034d796ab981451f5e9ba2ea021ca4ecbeff770
11. 0x53b5f0d40dcc042ae769956bb3fff7a7107519fd683ca90be375133b4b8417f3
12. 0x715a24b0f5dcc05977b0c3347c56e4c0b94bbc2f7d199d9d81cb44c4cf0d9324
13. 0x51686476d83f4be87192f4eeb7ac78473591bfaf5a92a1822648fcb019a95a83
14. 0x9914dfe331775bd1714304f757d2b6b43ba45167245d645ce50f54a3d8617c4d
15. 0xd82979c12a2aae44121bb6058b3364b3a3cbc9be411e35ab0208df5ed56f65d4
16. 0x7cb861d18f06406535ade133f716d897f27d257cf0121f99d94c78c713c4b54d
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af