{
  "meta": {
    "subject": "Roblox group 15723532",
    "retrieved": "2026-10-16T16:38:15.438Z",
    "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": 15723532,
    "name": "星団地下鉄メイングループ",
    "created": "2022-08-20T17:30:11.830Z",
    "owner_user_id": 3417819591,
    "member_count": 3962,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T16:31:03.261Z",
    "last_measured": "2026-10-16T15:28:43.401Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T17:28:28.252Z",
      "member_count": 3945
    },
    {
      "measured_at": "2026-08-13T07:36:39.908Z",
      "member_count": 3944
    },
    {
      "measured_at": "2026-08-14T16:43:10.044Z",
      "member_count": 3945
    },
    {
      "measured_at": "2026-08-15T04:01:15.757Z",
      "member_count": 3944
    },
    {
      "measured_at": "2026-08-16T07:55:25.100Z",
      "member_count": 3945
    },
    {
      "measured_at": "2026-08-16T16:27:20.506Z",
      "member_count": 3944
    },
    {
      "measured_at": "2026-08-18T19:02:43.553Z",
      "member_count": 3943
    },
    {
      "measured_at": "2026-08-21T12:32:50.724Z",
      "member_count": 3944
    },
    {
      "measured_at": "2026-08-21T17:31:03.904Z",
      "member_count": 3945
    },
    {
      "measured_at": "2026-08-23T18:22:37.228Z",
      "member_count": 3946
    },
    {
      "measured_at": "2026-08-24T14:19:08.476Z",
      "member_count": 3947
    },
    {
      "measured_at": "2026-08-25T22:46:12.958Z",
      "member_count": 3946
    },
    {
      "measured_at": "2026-08-26T10:56:42.073Z",
      "member_count": 3947
    },
    {
      "measured_at": "2026-08-26T14:37:56.309Z",
      "member_count": 3948
    },
    {
      "measured_at": "2026-09-03T18:31:00.055Z",
      "member_count": 3950
    },
    {
      "measured_at": "2026-09-04T17:12:31.174Z",
      "member_count": 3952
    },
    {
      "measured_at": "2026-09-06T08:53:21.604Z",
      "member_count": 3953
    },
    {
      "measured_at": "2026-09-09T02:57:04.001Z",
      "member_count": 3954
    },
    {
      "measured_at": "2026-09-09T09:37:36.590Z",
      "member_count": 3955
    },
    {
      "measured_at": "2026-09-12T08:03:35.886Z",
      "member_count": 3956
    },
    {
      "measured_at": "2026-09-13T10:10:51.015Z",
      "member_count": 3957
    },
    {
      "measured_at": "2026-09-19T22:26:32.337Z",
      "member_count": 3958
    },
    {
      "measured_at": "2026-09-21T06:07:38.684Z",
      "member_count": 3959
    },
    {
      "measured_at": "2026-09-22T00:21:01.196Z",
      "member_count": 3960
    },
    {
      "measured_at": "2026-09-22T08:12:13.823Z",
      "member_count": 3961
    },
    {
      "measured_at": "2026-09-23T04:17:43.874Z",
      "member_count": 3960
    },
    {
      "measured_at": "2026-09-23T05:43:12.142Z",
      "member_count": 3961
    },
    {
      "measured_at": "2026-09-23T11:53:51.279Z",
      "member_count": 3960
    },
    {
      "measured_at": "2026-09-27T19:46:28.984Z",
      "member_count": 3961
    },
    {
      "measured_at": "2026-09-29T23:04:21.422Z",
      "member_count": 3962
    },
    {
      "measured_at": "2026-10-01T01:28:47.054Z",
      "member_count": 3960
    },
    {
      "measured_at": "2026-10-02T16:20:48.508Z",
      "member_count": 3959
    },
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      "measured_at": "2026-10-05T14:53:34.141Z",
      "member_count": 3958
    },
    {
      "measured_at": "2026-10-11T22:13:13.646Z",
      "member_count": 3961
    },
    {
      "measured_at": "2026-10-12T09:51:24.630Z",
      "member_count": 3962
    }
  ],
  "name_history": [
    {
      "name": "星団地下鉄メイングループ",
      "first_seen": "2026-08-10T16:30:50.925Z",
      "last_seen": "2026-10-16T15:28:43.401Z",
      "current": true
    }
  ],
  "ownership_events": []
}