{
  "meta": {
    "subject": "Roblox group 10987689",
    "retrieved": "2026-10-20T05:59:57.816Z",
    "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": 10987689,
    "name": "Really Useful Engines",
    "created": "2021-06-02T02:07:20.207Z",
    "owner_user_id": 3139995517,
    "member_count": 8454,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T12:18:14.493Z",
    "last_measured": "2026-10-20T05:10:41.277Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T12:18:14.493Z",
      "member_count": 8346
    },
    {
      "measured_at": "2026-08-10T18:10:18.770Z",
      "member_count": 8347
    },
    {
      "measured_at": "2026-08-13T07:09:29.480Z",
      "member_count": 8348
    },
    {
      "measured_at": "2026-08-13T22:01:08.698Z",
      "member_count": 8349
    },
    {
      "measured_at": "2026-08-15T02:06:13.809Z",
      "member_count": 8348
    },
    {
      "measured_at": "2026-08-15T10:40:51.675Z",
      "member_count": 8349
    },
    {
      "measured_at": "2026-08-15T12:14:24.343Z",
      "member_count": 8351
    },
    {
      "measured_at": "2026-08-15T16:21:18.111Z",
      "member_count": 8350
    },
    {
      "measured_at": "2026-08-16T02:11:43.085Z",
      "member_count": 8353
    },
    {
      "measured_at": "2026-08-16T04:40:51.139Z",
      "member_count": 8354
    },
    {
      "measured_at": "2026-08-16T15:42:51.259Z",
      "member_count": 8355
    },
    {
      "measured_at": "2026-08-16T22:30:49.807Z",
      "member_count": 8357
    },
    {
      "measured_at": "2026-08-18T19:07:06.924Z",
      "member_count": 8358
    },
    {
      "measured_at": "2026-08-18T21:02:00.834Z",
      "member_count": 8359
    },
    {
      "measured_at": "2026-08-19T00:51:41.392Z",
      "member_count": 8360
    },
    {
      "measured_at": "2026-08-19T21:51:09.620Z",
      "member_count": 8359
    },
    {
      "measured_at": "2026-08-20T16:52:14.543Z",
      "member_count": 8360
    },
    {
      "measured_at": "2026-08-21T16:28:11.358Z",
      "member_count": 8362
    },
    {
      "measured_at": "2026-08-22T05:11:33.970Z",
      "member_count": 8361
    },
    {
      "measured_at": "2026-08-22T12:50:50.087Z",
      "member_count": 8363
    },
    {
      "measured_at": "2026-08-23T06:00:56.721Z",
      "member_count": 8366
    },
    {
      "measured_at": "2026-08-23T22:59:46.208Z",
      "member_count": 8367
    },
    {
      "measured_at": "2026-08-24T03:00:44.045Z",
      "member_count": 8369
    },
    {
      "measured_at": "2026-08-24T18:12:05.313Z",
      "member_count": 8368
    },
    {
      "measured_at": "2026-08-24T18:44:24.744Z",
      "member_count": 8369
    },
    {
      "measured_at": "2026-08-25T02:47:00.512Z",
      "member_count": 8368
    },
    {
      "measured_at": "2026-08-25T03:36:06.159Z",
      "member_count": 8369
    },
    {
      "measured_at": "2026-08-25T15:11:49.880Z",
      "member_count": 8370
    },
    {
      "measured_at": "2026-08-25T17:10:35.932Z",
      "member_count": 8371
    },
    {
      "measured_at": "2026-08-26T02:41:10.798Z",
      "member_count": 8372
    },
    {
      "measured_at": "2026-08-26T14:10:30.333Z",
      "member_count": 8373
    },
    {
      "measured_at": "2026-08-26T19:51:12.562Z",
      "member_count": 8375
    },
    {
      "measured_at": "2026-08-27T11:10:17.555Z",
      "member_count": 8376
    },
    {
      "measured_at": "2026-08-27T22:32:08.794Z",
      "member_count": 8377
    },
    {
      "measured_at": "2026-08-28T08:02:16.503Z",
      "member_count": 8376
    },
    {
      "measured_at": "2026-08-29T03:11:10.484Z",
      "member_count": 8377
    },
    {
      "measured_at": "2026-08-29T04:34:27.718Z",
      "member_count": 8379
    },
    {
      "measured_at": "2026-08-29T05:27:48.791Z",
      "member_count": 8380
    },
    {
      "measured_at": "2026-08-29T09:36:16.597Z",
      "member_count": 8379
    },
    {
      "measured_at": "2026-08-29T10:17:25.277Z",
      "member_count": 8380
    },
    {
      "measured_at": "2026-08-30T20:09:14.964Z",
      "member_count": 8379
    },
    {
      "measured_at": "2026-08-31T04:50:26.462Z",
      "member_count": 8378
    },
    {
      "measured_at": "2026-09-02T20:46:12.828Z",
      "member_count": 8379
    },
    {
      "measured_at": "2026-09-04T07:59:37.907Z",
      "member_count": 8380
    },
    {
      "measured_at": "2026-09-04T13:27:54.652Z",
      "member_count": 8381
    },
    {
      "measured_at": "2026-09-05T06:50:48.927Z",
      "member_count": 8382
    },
    {
      "measured_at": "2026-09-05T22:08:51.090Z",
      "member_count": 8384
    },
    {
      "measured_at": "2026-09-06T14:56:09.439Z",
      "member_count": 8385
    },
    {
      "measured_at": "2026-09-07T10:29:45.190Z",
      "member_count": 8386
    },
    {
      "measured_at": "2026-09-10T05:21:41.509Z",
      "member_count": 8387
    },
    {
      "measured_at": "2026-09-11T03:42:32.802Z",
      "member_count": 8388
    },
    {
      "measured_at": "2026-09-12T02:34:22.678Z",
      "member_count": 8387
    },
    {
      "measured_at": "2026-09-12T03:58:18.720Z",
      "member_count": 8388
    },
    {
      "measured_at": "2026-09-12T11:18:50.587Z",
      "member_count": 8389
    },
    {
      "measured_at": "2026-09-12T22:15:58.394Z",
      "member_count": 8392
    },
    {
      "measured_at": "2026-09-13T03:18:23.641Z",
      "member_count": 8391
    },
    {
      "measured_at": "2026-09-13T19:12:34.824Z",
      "member_count": 8392
    },
    {
      "measured_at": "2026-09-14T03:55:46.382Z",
      "member_count": 8394
    },
    {
      "measured_at": "2026-09-14T23:17:38.640Z",
      "member_count": 8395
    },
    {
      "measured_at": "2026-09-15T06:50:46.788Z",
      "member_count": 8396
    },
    {
      "measured_at": "2026-09-16T16:47:00.033Z",
      "member_count": 8397
    },
    {
      "measured_at": "2026-09-17T21:56:49.860Z",
      "member_count": 8399
    },
    {
      "measured_at": "2026-09-18T10:44:08.206Z",
      "member_count": 8398
    },
    {
      "measured_at": "2026-09-19T06:08:28.864Z",
      "member_count": 8399
    },
    {
      "measured_at": "2026-09-19T16:41:39.584Z",
      "member_count": 8398
    },
    {
      "measured_at": "2026-09-19T22:18:41.217Z",
      "member_count": 8400
    },
    {
      "measured_at": "2026-09-20T00:28:15.462Z",
      "member_count": 8401
    },
    {
      "measured_at": "2026-09-20T23:14:03.819Z",
      "member_count": 8400
    },
    {
      "measured_at": "2026-09-21T06:05:42.430Z",
      "member_count": 8401
    },
    {
      "measured_at": "2026-09-21T11:31:01.679Z",
      "member_count": 8402
    },
    {
      "measured_at": "2026-09-22T15:44:01.976Z",
      "member_count": 8404
    },
    {
      "measured_at": "2026-09-22T23:44:45.584Z",
      "member_count": 8405
    },
    {
      "measured_at": "2026-09-24T22:24:45.683Z",
      "member_count": 8406
    },
    {
      "measured_at": "2026-09-26T03:32:00.375Z",
      "member_count": 8407
    },
    {
      "measured_at": "2026-09-26T13:55:29.801Z",
      "member_count": 8406
    },
    {
      "measured_at": "2026-09-27T05:37:39.648Z",
      "member_count": 8407
    },
    {
      "measured_at": "2026-09-27T16:46:32.395Z",
      "member_count": 8409
    },
    {
      "measured_at": "2026-09-27T19:04:27.521Z",
      "member_count": 8410
    },
    {
      "measured_at": "2026-09-28T08:09:22.759Z",
      "member_count": 8411
    },
    {
      "measured_at": "2026-09-29T09:06:33.880Z",
      "member_count": 8412
    },
    {
      "measured_at": "2026-09-29T19:04:53.865Z",
      "member_count": 8414
    },
    {
      "measured_at": "2026-09-30T17:50:50.077Z",
      "member_count": 8413
    },
    {
      "measured_at": "2026-10-02T01:51:31.867Z",
      "member_count": 8414
    },
    {
      "measured_at": "2026-10-02T09:51:32.686Z",
      "member_count": 8418
    },
    {
      "measured_at": "2026-10-02T11:40:48.755Z",
      "member_count": 8419
    },
    {
      "measured_at": "2026-10-02T22:30:49.817Z",
      "member_count": 8420
    },
    {
      "measured_at": "2026-10-03T01:27:28.825Z",
      "member_count": 8421
    },
    {
      "measured_at": "2026-10-03T09:59:24.697Z",
      "member_count": 8423
    },
    {
      "measured_at": "2026-10-04T00:04:49.008Z",
      "member_count": 8424
    },
    {
      "measured_at": "2026-10-04T19:15:55.655Z",
      "member_count": 8426
    },
    {
      "measured_at": "2026-10-04T22:58:14.816Z",
      "member_count": 8427
    },
    {
      "measured_at": "2026-10-05T21:17:44.457Z",
      "member_count": 8429
    },
    {
      "measured_at": "2026-10-06T06:45:13.748Z",
      "member_count": 8431
    },
    {
      "measured_at": "2026-10-06T20:36:18.226Z",
      "member_count": 8432
    },
    {
      "measured_at": "2026-10-07T04:51:39.643Z",
      "member_count": 8433
    },
    {
      "measured_at": "2026-10-07T15:25:47.565Z",
      "member_count": 8434
    },
    {
      "measured_at": "2026-10-07T16:46:41.346Z",
      "member_count": 8435
    },
    {
      "measured_at": "2026-10-07T23:41:46.095Z",
      "member_count": 8438
    },
    {
      "measured_at": "2026-10-09T02:18:34.931Z",
      "member_count": 8439
    },
    {
      "measured_at": "2026-10-09T12:15:18.097Z",
      "member_count": 8438
    },
    {
      "measured_at": "2026-10-09T22:37:07.108Z",
      "member_count": 8440
    },
    {
      "measured_at": "2026-10-10T01:42:38.958Z",
      "member_count": 8441
    },
    {
      "measured_at": "2026-10-10T02:26:44.298Z",
      "member_count": 8442
    },
    {
      "measured_at": "2026-10-11T00:01:49.613Z",
      "member_count": 8444
    },
    {
      "measured_at": "2026-10-11T05:46:16.253Z",
      "member_count": 8443
    },
    {
      "measured_at": "2026-10-11T13:59:04.523Z",
      "member_count": 8444
    },
    {
      "measured_at": "2026-10-11T18:05:01.861Z",
      "member_count": 8445
    },
    {
      "measured_at": "2026-10-12T06:11:42.581Z",
      "member_count": 8446
    },
    {
      "measured_at": "2026-10-12T19:10:45.237Z",
      "member_count": 8447
    },
    {
      "measured_at": "2026-10-12T20:54:01.412Z",
      "member_count": 8448
    },
    {
      "measured_at": "2026-10-13T03:27:30.981Z",
      "member_count": 8449
    },
    {
      "measured_at": "2026-10-13T09:20:47.308Z",
      "member_count": 8448
    },
    {
      "measured_at": "2026-10-14T01:32:22.595Z",
      "member_count": 8451
    },
    {
      "measured_at": "2026-10-14T03:39:30.779Z",
      "member_count": 8452
    },
    {
      "measured_at": "2026-10-14T19:54:21.573Z",
      "member_count": 8454
    },
    {
      "measured_at": "2026-10-15T11:49:20.304Z",
      "member_count": 8453
    },
    {
      "measured_at": "2026-10-15T21:27:36.701Z",
      "member_count": 8454
    },
    {
      "measured_at": "2026-10-16T16:34:37.106Z",
      "member_count": 8453
    },
    {
      "measured_at": "2026-10-16T20:35:53.699Z",
      "member_count": 8452
    },
    {
      "measured_at": "2026-10-17T23:52:56.021Z",
      "member_count": 8453
    },
    {
      "measured_at": "2026-10-18T05:10:50.764Z",
      "member_count": 8454
    },
    {
      "measured_at": "2026-10-18T14:28:53.726Z",
      "member_count": 8456
    },
    {
      "measured_at": "2026-10-18T17:26:57.132Z",
      "member_count": 8457
    },
    {
      "measured_at": "2026-10-19T03:19:42.642Z",
      "member_count": 8456
    },
    {
      "measured_at": "2026-10-19T05:15:53.991Z",
      "member_count": 8455
    },
    {
      "measured_at": "2026-10-19T18:39:00.362Z",
      "member_count": 8454
    }
  ],
  "name_history": [
    {
      "name": "Really Useful Engines",
      "first_seen": "2026-08-10T12:18:14.493Z",
      "last_seen": "2026-10-20T05:10:41.277Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T15:18:04.469Z",
      "previous_owner": null,
      "new_owner": 3139995517
    }
  ]
}