{
  "meta": {
    "subject": "Roblox group 5855419",
    "retrieved": "2026-09-08T01:57:13.623Z",
    "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": 5855419,
    "name": "[CBRN] Biological Corps",
    "created": "2020-03-30T13:05:24.707Z",
    "owner_user_id": 153877217,
    "member_count": 1810,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T11:48:08.247Z",
    "last_measured": "2026-09-08T01:31:31.757Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T11:48:08.247Z",
      "member_count": 1805
    },
    {
      "measured_at": "2026-08-10T13:17:05.197Z",
      "member_count": 1805
    },
    {
      "measured_at": "2026-08-11T00:21:11.736Z",
      "member_count": 1804
    },
    {
      "measured_at": "2026-08-12T09:11:28.170Z",
      "member_count": 1803
    },
    {
      "measured_at": "2026-08-13T09:32:06.223Z",
      "member_count": 1805
    },
    {
      "measured_at": "2026-08-17T18:52:10.250Z",
      "member_count": 1806
    },
    {
      "measured_at": "2026-08-17T22:41:57.673Z",
      "member_count": 1807
    },
    {
      "measured_at": "2026-08-18T10:10:51.895Z",
      "member_count": 1806
    },
    {
      "measured_at": "2026-08-18T19:41:40.365Z",
      "member_count": 1807
    },
    {
      "measured_at": "2026-08-20T15:31:59.465Z",
      "member_count": 1808
    },
    {
      "measured_at": "2026-08-20T17:30:52.892Z",
      "member_count": 1809
    },
    {
      "measured_at": "2026-08-20T19:21:24.479Z",
      "member_count": 1808
    },
    {
      "measured_at": "2026-08-22T05:41:25.551Z",
      "member_count": 1807
    },
    {
      "measured_at": "2026-08-24T02:01:44.165Z",
      "member_count": 1808
    },
    {
      "measured_at": "2026-08-25T20:10:18.694Z",
      "member_count": 1809
    },
    {
      "measured_at": "2026-08-26T08:51:12.519Z",
      "member_count": 1808
    },
    {
      "measured_at": "2026-08-27T10:20:22.503Z",
      "member_count": 1807
    },
    {
      "measured_at": "2026-08-27T21:11:14.270Z",
      "member_count": 1806
    },
    {
      "measured_at": "2026-08-28T20:01:40.672Z",
      "member_count": 1807
    },
    {
      "measured_at": "2026-08-29T01:50:44.242Z",
      "member_count": 1806
    },
    {
      "measured_at": "2026-08-29T07:31:21.717Z",
      "member_count": 1807
    },
    {
      "measured_at": "2026-08-29T17:40:06.720Z",
      "member_count": 1806
    },
    {
      "measured_at": "2026-08-31T16:50:20.647Z",
      "member_count": 1805
    },
    {
      "measured_at": "2026-09-01T11:51:27.847Z",
      "member_count": 1806
    },
    {
      "measured_at": "2026-09-05T18:01:26.098Z",
      "member_count": 1808
    },
    {
      "measured_at": "2026-09-07T04:31:35.746Z",
      "member_count": 1809
    },
    {
      "measured_at": "2026-09-07T14:40:19.665Z",
      "member_count": 1810
    }
  ],
  "name_history": [
    {
      "name": "[CBRN] Biological Corps",
      "first_seen": "2026-08-10T11:48:08.247Z",
      "last_seen": "2026-09-08T01:31:31.757Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T13:17:05.197Z",
      "previous_owner": null,
      "new_owner": 153877217
    }
  ]
}