Evidence row 1828790

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://bigmarker.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/bigmarker/"
    ]
  ],
  "name": "BigMarker MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T20:36:11.139701Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T20:36:11.139701Z",
        "updatedAt": "2026-11-01T20:36:11.139701Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read conferences, registrants, attendees and recordings; register and cancel people in BigMarker.",
      "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/bigmarker",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://bigmarker.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/bigmarker",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "BigMarker MCP by usefulapi",
      "version": "1.0.0",
      "websiteUrl": "https://usefulapi.io/bigmarker/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read conferences, registrants, attendees and recordings; register and cancel people in BigMarker."
}

What the leaf hashes

{"body":"83c1f9d127dc17a7b7eb74cc9496d7f8dedb8dd541346aa0915b023c6dbc2976","id":1828790,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793567869091739,"prev":null,"subject":"mcp_registry:io.usefulapi/bigmarker","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x63f3eefbcf2ec6d3cffddd18889494a3ab9efc78901e6ec4936957cd39ca2db9
2. 0x85519a795ca9155a2a87199d82a9184741b9f81d9479e302cbeae8b505b3c565
3. 0x137a31b923b96cf274d0710653ac72ef5583df88371a23ae1007ecc12e2bba35
4. 0xb2df3da67bd6d2d148538259553957f81dbd8d94f92bc1f7f08e5c88736b4e68
5. 0x697b1857f8cdfcda613d3c6530b0f9fee30e4a2aed961bdbf54e1d3fa18541dc
6. 0x6111bc30da2b9c9cd95aa9173de7e8a7d60c7713c8b9b3868981df7f635a446a
7. 0x60b1ee0d17894a281cac98e6d2846a7a05cc4a88fc172bb934c6b4418dd049ae
8. 0xc6253dbdfc4e8203dc725618e332d4f00b692f09079cf6ba1b2337f4d233eafd
9. 0x3174a61b254839a8dac7631ff7d45ec2d6c1f1b804c9dce87705cb85e05409bb
10. 0x68cb045d4cde489a01e86c53c36d487cb765ba1e182399c96551afe529107c94
11. 0x9cf16a74421cb53d4df43aeebcfe969dfce36fe6aacc7138116c104333c23daf
12. 0xff9b8f01632947d40738b3e8648f66d25af96563c1bee717d4e6024bf22ae3e3
13. 0x0aa7bcd64ab1520080bf6bd72a75d5f377537629b47f20b8e8d9418871f23602
14. 0xf2a2a0157f28bf3255c9b6847cbe675ba213d3983bbfe1c0848c216c57838e54
15. 0x7c66173839ef153f08dfd346f7ea956e9226e1b7ff05bf4c6cf27436953f336b
16. 0xc1f6e8dd182b37cbb6e04d0e69486bd40d440934f8e373b9bae8cb78de508bba
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90