Evidence row 443076

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://evenium.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/evenium/"
    ]
  ],
  "name": "Evenium MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T08:35:09.847946Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:35:09.847946Z",
        "updatedAt": "2026-10-27T08:35:09.847946Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Evenium events, guests, contacts and hotels; register guests and update contacts and statuses.",
      "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/evenium",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://evenium.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/evenium",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Evenium MCP by usefulapi",
      "version": "1.1.0",
      "websiteUrl": "https://usefulapi.io/evenium/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Evenium events, guests, contacts and hotels; register guests and update contacts and statuses."
}

What the leaf hashes

{"body":"81657265c59ca3f14eaf8d086c4391b9ee41f3403a52bb40cf31953feea16371","id":443076,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093257840605,"prev":56584,"subject":"mcp_registry:io.usefulapi/evenium","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xcde3e1af5648b9d1b0872f9f59ab2df370df6e925d82c9bad874a02c26b5bd37
2. 0x0e42449cc25ae681cae710fcc60858538aa701dbccb20e83112f07da28dc309e
3. 0x12434e602fa7012828e29f6aea105d4978b195f95f139d39a6d4f302958015c5
4. 0x991273e288465c9821c135c2074529542fe92e15c3fa389848a36f421e2359ce
5. 0x7870e8071a32ff043d416c9c92cc2fbac2dd8365be53490dd4166f6f688e3420
6. 0x5aafef30bad3b3e99e13985c38f4b5406d9488ace23bc0d133f0b4e46591287c
7. 0x85443a20318503fe4a48d2b8aa1122dab7f715f8e2b29185da95b8a44618ebc7
8. 0x676695db2f7966d64e99e5a89896d4a4c118deb43d1f1d5b435a69589ee2a9ed
9. 0x43d5ca461cd4b67fc1995e33653efedad3021ccb2e96c47f030a930c76480836
10. 0xc47333eaed4999c782c1a85ca79791472b5a3f8d20a499815180a17f44f99851
11. 0x8e565ff0c748ae2cc61548174e51ddca11de3dc906e11accf31e6523b86a600c
12. 0x66e8d9e469038ef11a686abeed12c8ceb38a1a8cd79012ccf20d29a30858cbbc
13. 0xeb77e9d1884bf470f4a13a5869956a83ac37957112a29ccb9e63ddf7791b5a0b
14. 0xcc49fd573532e5a29f5be4033f62a2eff71456c020bd2258312b98e95cfe301e
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4