{
  "meta": {
    "subject": "Roblox group 2578820",
    "retrieved": "2026-10-18T19:07:52.369Z",
    "licence": "Measured by roregister.com from public Roblox APIs. Free to reuse with attribution to roregister.com. Not affiliated with Roblox Corporation.",
    "notes": {
      "member_history": "insert-on-change; a point exists only where the value differed from the prior reading.",
      "detection_dates": "ownership/name changes are dated when this register observed them, not when they happened."
    }
  },
  "group": {
    "id": 2578820,
    "name": "Roblox builders club (free)",
    "created": "2015-05-10T17:43:08.607Z",
    "owner_user_id": 41823057,
    "member_count": 42845,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T11:49:03.314Z",
    "last_measured": "2026-10-18T19:02:02.914Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T11:49:03.314Z",
      "member_count": 42878
    },
    {
      "measured_at": "2026-08-11T14:01:34.680Z",
      "member_count": 42877
    },
    {
      "measured_at": "2026-08-12T09:02:35.272Z",
      "member_count": 42876
    },
    {
      "measured_at": "2026-08-14T02:30:23.590Z",
      "member_count": 42875
    },
    {
      "measured_at": "2026-08-15T10:40:07.963Z",
      "member_count": 42874
    },
    {
      "measured_at": "2026-08-15T12:31:42.331Z",
      "member_count": 42873
    },
    {
      "measured_at": "2026-08-16T04:01:06.728Z",
      "member_count": 42872
    },
    {
      "measured_at": "2026-08-16T15:11:11.653Z",
      "member_count": 42871
    },
    {
      "measured_at": "2026-08-16T16:11:46.800Z",
      "member_count": 42873
    },
    {
      "measured_at": "2026-08-17T17:10:54.689Z",
      "member_count": 42872
    },
    {
      "measured_at": "2026-08-18T00:01:07.610Z",
      "member_count": 42871
    },
    {
      "measured_at": "2026-08-19T14:40:27.291Z",
      "member_count": 42870
    },
    {
      "measured_at": "2026-08-20T17:00:32.581Z",
      "member_count": 42869
    },
    {
      "measured_at": "2026-08-23T13:58:39.551Z",
      "member_count": 42868
    },
    {
      "measured_at": "2026-08-24T23:41:24.278Z",
      "member_count": 42867
    },
    {
      "measured_at": "2026-08-29T16:20:03.077Z",
      "member_count": 42866
    },
    {
      "measured_at": "2026-09-02T10:20:41.895Z",
      "member_count": 42865
    },
    {
      "measured_at": "2026-09-02T21:21:12.256Z",
      "member_count": 42864
    },
    {
      "measured_at": "2026-09-06T19:20:22.511Z",
      "member_count": 42865
    },
    {
      "measured_at": "2026-09-08T18:20:41.453Z",
      "member_count": 42864
    },
    {
      "measured_at": "2026-09-14T04:41:04.811Z",
      "member_count": 42863
    },
    {
      "measured_at": "2026-09-14T14:23:16.599Z",
      "member_count": 42864
    },
    {
      "measured_at": "2026-09-15T14:40:26.087Z",
      "member_count": 42863
    },
    {
      "measured_at": "2026-09-16T01:40:47.838Z",
      "member_count": 42862
    },
    {
      "measured_at": "2026-09-22T11:11:37.008Z",
      "member_count": 42861
    },
    {
      "measured_at": "2026-09-22T14:01:11.302Z",
      "member_count": 42860
    },
    {
      "measured_at": "2026-09-25T10:31:41.180Z",
      "member_count": 42859
    },
    {
      "measured_at": "2026-09-29T19:40:14.528Z",
      "member_count": 42858
    },
    {
      "measured_at": "2026-09-30T18:00:22.296Z",
      "member_count": 42857
    },
    {
      "measured_at": "2026-10-05T00:50:21.873Z",
      "member_count": 42856
    },
    {
      "measured_at": "2026-10-07T02:40:05.316Z",
      "member_count": 42855
    },
    {
      "measured_at": "2026-10-07T07:00:30.962Z",
      "member_count": 42856
    },
    {
      "measured_at": "2026-10-08T15:21:48.369Z",
      "member_count": 42855
    },
    {
      "measured_at": "2026-10-10T04:31:33.394Z",
      "member_count": 42854
    },
    {
      "measured_at": "2026-10-15T18:02:08.333Z",
      "member_count": 42852
    },
    {
      "measured_at": "2026-10-16T17:01:01.259Z",
      "member_count": 42851
    },
    {
      "measured_at": "2026-10-16T17:30:37.441Z",
      "member_count": 42850
    },
    {
      "measured_at": "2026-10-16T18:01:26.398Z",
      "member_count": 42848
    },
    {
      "measured_at": "2026-10-17T20:11:14.297Z",
      "member_count": 42847
    },
    {
      "measured_at": "2026-10-17T21:40:14.709Z",
      "member_count": 42846
    },
    {
      "measured_at": "2026-10-18T12:01:06.283Z",
      "member_count": 42845
    }
  ],
  "name_history": [
    {
      "name": "Roblox builders club (free)",
      "first_seen": "2026-08-10T11:49:03.314Z",
      "last_seen": "2026-10-18T19:02:02.914Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T13:04:34.173Z",
      "previous_owner": null,
      "new_owner": 41823057
    }
  ]
}