Evidence row 1541068

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": "2026-10-31T21:44:32.359969Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:44:32.359969Z",
        "updatedAt": "2026-10-31T21:44:32.359969Z"
      }
    },
    "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": "1.20.0",
      "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":"3d59c2090267c7811cec1c0dce51ad58be76fb1280452742e58ddeeccc066855","id":1541068,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485021009336,"prev":1537657,"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. 0x0a7cbab702872789eee2b6176905ae0f37bac22dc33f6686ba4901a43f2ec5a1
2. 0x9cbf075125482a5491f88fb811527a133654a19c519a6967142038dd1aaed537
3. 0x8f23fb198dbcb4badfa0fd9b19ad2b59b9b9d8bd5e9c80946ec502c7f9eb8734
4. 0xe815c6f7d724ba860fbc137372f37832bd7408afaa1c161f4df4e6de58970404
5. 0xfacdeeefef68e0686e6ffaf5908861f97bae29086c2599130bec70c6a0afedde
6. 0x25dbac4a6abf1a058d19fae993d11eddbed00cc27115a9a12b4795f48c73fe97
7. 0x187ab75d2379a67b4562dd23cd33cc40c5ac80fcbad03a4e1571d0e52be6a6f9
8. 0xd62b59d6bff4b040a2ccf598de6273103233602e97ced49863d29a162e2c63cb
9. 0xd5977c0941aedf8ac9c3a1391f6135af12bb2428ce2963fe32fda8cbe93980ed
10. 0x5e07954392141e277c5d7af51c45b761be539d78d8387eb26206c28c1529fb9a
11. 0x5adb275a8eeb6f27f2a4c018f90073db7ae12b4aac5e7188285124ca3e7ae096
12. 0xee6182c61362017103fc5f686d55ffd04fdf5414dcfb1cc1ed7b7a5103989301
13. 0x232f8590881ea4921512fc0756dcc829d8993faf60aefe4803b3883808832315
14. 0x5f01ce2f7be13617b127cba8dfc54bc12d54dc74dbe1632c8104af22668fd4f3
15. 0x72fbe549c493739bb99e38209648de550f136f904e61b4f7609a937c2630a055
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0