{
  "meta": {
    "subject": "Roblox group 4742807",
    "retrieved": "2026-10-17T17:43:28.805Z",
    "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": 4742807,
    "name": "Fallout: Vault 15",
    "created": "2019-02-16T11:48:35.160Z",
    "owner_user_id": 55036218,
    "member_count": 1927,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T12:08:50.426Z",
    "last_measured": "2026-10-17T16:12:01.385Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T12:08:50.426Z",
      "member_count": 1928
    },
    {
      "measured_at": "2026-08-13T00:42:16.707Z",
      "member_count": 1927
    },
    {
      "measured_at": "2026-08-21T22:40:57.507Z",
      "member_count": 1926
    },
    {
      "measured_at": "2026-08-29T23:22:05.105Z",
      "member_count": 1927
    },
    {
      "measured_at": "2026-08-31T13:32:36.668Z",
      "member_count": 1926
    },
    {
      "measured_at": "2026-09-08T02:20:41.068Z",
      "member_count": 1925
    },
    {
      "measured_at": "2026-09-26T20:12:35.226Z",
      "member_count": 1924
    },
    {
      "measured_at": "2026-09-28T02:42:53.525Z",
      "member_count": 1925
    },
    {
      "measured_at": "2026-09-30T15:17:49.270Z",
      "member_count": 1926
    },
    {
      "measured_at": "2026-10-07T11:06:56.924Z",
      "member_count": 1927
    }
  ],
  "name_history": [
    {
      "name": "Fallout: Vault 15",
      "first_seen": "2026-08-10T12:08:50.426Z",
      "last_seen": "2026-10-17T16:12:01.385Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T13:54:40.688Z",
      "previous_owner": null,
      "new_owner": 55036218
    }
  ]
}