{
  "meta": {
    "subject": "Roblox group 2830791",
    "retrieved": "2026-10-18T00:34:55.605Z",
    "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": 2830791,
    "name": "Marstem Vale Railway",
    "created": "2016-05-08T18:56:43.613Z",
    "owner_user_id": 5782872440,
    "member_count": 2129,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T12:08:50.426Z",
    "last_measured": "2026-10-17T23:51:12.023Z"
  },
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    {
      "measured_at": "2026-08-10T12:08:50.426Z",
      "member_count": 2076
    },
    {
      "measured_at": "2026-08-10T20:01:32.622Z",
      "member_count": 2077
    },
    {
      "measured_at": "2026-08-12T22:44:25.353Z",
      "member_count": 2079
    },
    {
      "measured_at": "2026-08-13T15:06:05.106Z",
      "member_count": 2080
    },
    {
      "measured_at": "2026-08-13T19:04:56.467Z",
      "member_count": 2079
    },
    {
      "measured_at": "2026-08-14T11:02:17.493Z",
      "member_count": 2080
    },
    {
      "measured_at": "2026-08-16T15:51:00.725Z",
      "member_count": 2081
    },
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      "member_count": 2082
    },
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      "measured_at": "2026-08-17T13:18:35.763Z",
      "member_count": 2083
    },
    {
      "measured_at": "2026-08-17T13:42:54.947Z",
      "member_count": 2082
    },
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      "measured_at": "2026-08-17T15:34:36.157Z",
      "member_count": 2083
    },
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      "measured_at": "2026-08-18T18:21:14.087Z",
      "member_count": 2084
    },
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      "member_count": 2085
    },
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    },
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      "member_count": 2087
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    },
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      "member_count": 2089
    },
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      "measured_at": "2026-08-20T16:10:29.594Z",
      "member_count": 2090
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      "member_count": 2097
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    },
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      "member_count": 2129
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      "measured_at": "2026-10-17T16:12:01.385Z",
      "member_count": 2128
    },
    {
      "measured_at": "2026-10-17T21:52:00.174Z",
      "member_count": 2129
    }
  ],
  "name_history": [
    {
      "name": "Marstem Vale Railway",
      "first_seen": "2026-08-10T12:08:50.426Z",
      "last_seen": "2026-10-17T23:51:12.023Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T13:16:10.943Z",
      "previous_owner": null,
      "new_owner": 5782872440
    }
  ]
}