Evidence row 1481761

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": "2026-10-31T10:53:14.750631Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T10:53:14.750631Z",
        "updatedAt": "2026-10-31T10:53:14.750631Z"
      }
    },
    "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": "1.17.0",
      "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":"775dae2c51cb5973c59d299019902e3e0a7e9a07d0eb82c47507f859cb54125e","id":1481761,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793445356627977,"prev":1257411,"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 2026-10-31 (246033 rows).

1. 0xc8d25411417ed69f4a744aa4e797339997815b331a75f05ae35519cfd532ff56
2. 0xea9cb821d9cf237eb04e89bb11cdec5c9383e7da0d40904cae67ce359adb7a82
3. 0x183afcd57ceccd3f964b5264fcf653d789c12173416b7afcc6d14bd3ba2bfd2c
4. 0xe67394f6ffd721c35d29419e2587ce4168656d7b0563b10e7a8997c3bfc7534d
5. 0x4702c2bb9174d52ce515692e70ceee3f939973539c078f2bec4bd778b7a09e68
6. 0x421ecfb4dfc67084bab33282961fc627ea65221148ed90decd91a7e4795f32ca
7. 0x93d7fc684eed7405056493cffa487443f9456cfbfc79b3d07716525e3461c9d4
8. 0x65210c7db5f2985eab0188dea9b98d63b973f9c17d1c1e230e64c37a6ef8c3ed
9. 0x57fda31cddd892b6b03d40acfa16a48e251cffd18b6b6551e5f4758d84cbcc5d
10. 0xe7dda78532826d38a3e393a2f473c483c3e99260b349a88e91b4e86734412116
11. 0xd3de25f3e92827ad7894c73114e7d63ec4d19c6cf7f062e31cf4654976243ee0
12. 0x9848da3b6eec1297925b29887f5848a0e34a120f4f695768d01669f03318e24c
13. 0xe0d6e3ecef4b18411e0b397b43270df35fb812a3310b2887db923fb26c7ba65e
14. 0x9b9c034ab0236a2e232e78d82d298819198dd0da36f638cae5260bb378f14798
15. 0xdd44ee37f508e0be8213cd488d246afd8e10e6e73374cc6074077c37270cda1e
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0