Evidence row 3944949

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": "2026-11-07T09:18:25.876561Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T09:18:25.876561Z",
        "updatedAt": "2026-11-07T09:18:25.876561Z"
      }
    },
    "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": "1.3.3",
      "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":"74bca12b1e64e388550bba662812891504a83945869c0ef9470239eca834e554","id":3944949,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794043453741213,"prev":3774968,"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. 0x557eb14a7b16c1399d7cba17bef1ee66e87994e90523b174faf8a6a23a13e3a0
2. 0x77bed837fc591359c15447cc9108f6247ec344c12bf5216c842a38b0a9f16aaa
3. 0x23a0e3e948abd3ed3747830968196a47b9d6fb80b6bd4d2caaeb32aa6fb89542
4. 0x4f9505c15f935e7429231b6837f350aeaeede9cbd28ac8d6a952a359bb850f96
5. 0x969ba55434db5203b120c51513ccf253b371e1ea7d0b3de5b401398306f0dc0c
6. 0x1cb46934549000c05f2566868dbdbaf96023f58e3dd53b459488afce23df9c2d
7. 0xea060c2d64188dcdd229ee313540053745a61cc0cea166483708c86ac93153e1
8. 0xab73934cd3559a9114bc517da6087d14631a3c134761c8d527e29c27c2796527
9. 0xea32158bb7e50024388f390fb539571d0e43a08b8d668e61c52808a153dd527a
10. 0x7df0e1ff89647cdb395995625e3577dde6e57070a6dd52f99a392f062cad1f21
11. 0xebda6c2bd749fef031a3aec3d78c1d3df8fe92293e408b1c6db3f04ab4d49d7f
12. 0xb445cc0685d8f6f3695f9f40dbf88753c44732bee2f061fb1df4542940b9d87c
13. 0xc3b5a5b5deec688de4c1e547f1f861e0aa4ab6641dd79f6e7e20b0e5a09c6cd8
14. 0x712cc609388442c0171a13fe8c2149c1d02ab5643adc1ab035eb3abf53adbae9
15. 0x9127f3a0ab829dab5d80217ddc8d077053e20f2e260baed043c8a97478ebb2bf
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa