Evidence row 3986561

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": "2026-11-07T21:56:36.914319Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:36.914319Z",
        "updatedAt": "2026-11-07T21:56:36.914319Z"
      }
    },
    "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": "1.3.5",
      "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":"b55d5a6ac62d2c9a8ec62b6a6aa8eb62915b31527619e22656f1e47686bb80f1","id":3986561,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090323831997,"prev":3957805,"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 2026-11-07 (195826 rows).

1. 0xb7d9bcc35b3e814973049a22e2e93e233d416254bce339652076bdc2cf5aae5f
2. 0x714149a4ccb6f22472e0a9bfc39608999f9a16c087b2819e4a6f3e579c538530
3. 0x161937994c48418ccfe00399c515081faadb3dfa836b2e36d272816aae5ab6de
4. 0x8d6addff88c606ca0dea79ed6e1b46566fa05fd6484634f02667d2128d1137d0
5. 0x2c0cbd2cd6a111403ddedb68f7621453850001efc040018a33f0e1ed39dcc905
6. 0xa0ea3fc06182835808bfbeda10caef293a228672fcf2e303535f876c249d5394
7. 0xd2fd25442888f811896176b5e4e4590442c16018dbfe9d95e0af298d5b901256
8. 0x1a7453d507fb4366f85d2b2d0f93628584d6ce7d46fd59c831822ea712b5e2a3
9. 0xcbe41db2d481443042a002ed17f1e1b0891f5d500014d78685f0271d6c33d181
10. 0xcfdb96f3e874448f7707d7026cb7d005df67af57de60bb2a7de5b1c1e812ed65
11. 0xbcbe6d5052547f564b0f2f500a405e6594dfc2cb2dfd4bb1a5a152fcb0ddbf4f
12. 0x4bf5ce7834d114514a59b9c89689bbf9b5c705a0a8e935970399516e01533119
13. 0x0d8c5e754523e6e4a876e7fe9341fa7b94a14cd11d7a341b370800104a0ac37d
14. 0x7720754cd1d565acdb28ae2e3c2e759562843c986908d08656bf4c41e785a347
15. 0x2afbeaef1e4de4b2a6d70326e3dc41f9f1c65d4fc46630d217fc932790b0680c
16. 0x3235c8a33ac14441f1a12a6515f670286d48b48fa98eb1dce45d902e053abe01
17. 0x9ea7c2ecc6985da4b761b0f9096b7858b3ac8e3e47717c3840537fb2ff31c6df

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa