Evidence row 1503318

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": "2026-10-31T17:39:05.673197Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:39:05.673197Z",
        "updatedAt": "2026-10-31T17:39:05.673197Z"
      }
    },
    "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": "1.18.0",
      "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":"c479d01b6acad010647115c1aed46192beccee69d2aeb8497fd00a15b3f95529","id":1503318,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793470580987776,"prev":1481761,"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. 0x4c7042795f73466f1a375765b36b21f1a43f9096f6eedaf9755ffb39f18774ca
2. 0x6edf89be2daf48d60808bf7c37c17ff44376e27ac1b3eff32bc1c7b9f4aa4de8
3. 0xc5b4e0646bb020bc229fec32b1e7d30c80be83ebf08c608f10e8c0788ebc901e
4. 0xbbbc0dda30091ce47660c357a085233402106bac150d77fe770c94d639500190
5. 0x833e3729a158c19623b639f05a49517393a53c1b2257cebe6366deb6111f01dc
6. 0x50cabe06ed82c8c36373528e7b287350b10ec1a888f6dc1bed6e494d1b816261
7. 0xb7a4ac644d7c0b54d7e70418f1400aa817ed20559673868a9153369b4815b007
8. 0x4a999a69fc31772eb10b1367d74726cbc565fe34b12eb30330b34d17e3282eff
9. 0xf62660e8d4759170eed10bbb9e612ebd5751ef1c8c53e69787cc8c23a8f9c521
10. 0xba53c732d16d3df5c356dce26b5a54135225b2561a319b62affd2cc0cc3473df
11. 0x09c57d4a165c02842fe83d9990d476fbb49c1736a167a7d103a8fad025f85c85
12. 0xd8082ac82a3597a5d01801914570acfd58eb4768c625e0c1bea0c5481620828a
13. 0x3b31ad2e230b4adddfd3db6e960243f893810b5bd12d29f0e9a17684e7acb3b6
14. 0xa61ca0b664c5ff2f545d3f92e3125f2b38c2b4e58fd9a71badfd8a85dda4c936
15. 0x37f0ccf90cd9ba8759ef0154382593820880794592760020f095a3628e43fc3f
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0