{
 "meta": {
  "dataset": "Subscriber history — @AllSecurityEngineeringCourses",
  "channel": "https://tgregister.com/channel/AllSecurityEngineeringCourses",
  "retrieved_at": "2026-09-16T16:30:35.438Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 31,
  "window": {
   "from": "2026-08-07T11:17:24.218Z",
   "to": "2026-09-16T15:21:56.617Z"
  },
  "columns": {
   "ts": "when this reading was taken, UTC",
   "subscribers": "the count read (or, for source 3, carried over) — see source below",
   "source": {
    "0": "sweep.py — t.me/<name> profile page",
    "1": "promote.py — Bot API getChat",
    "2": "resolve.py — MTProto",
    "3": "spromote.py — t.me/s/<name> post preview (figure carried over from an earlier profile read, not the preview’s own rounded header)",
    "4": "remeasure.py — t.me/<name> profile page, re-read on a schedule"
   }
  },
  "note": "Snapshots are written only when a reading changes: a gap in ts means \"no change observed between readings\", never \"not measured\" and never \"interpolated\". Readings from different sources are separate lineages that do not confirm one another — subtracting across them can attribute a change to a period nothing was actually read in. Full method: https://tgregister.com/methodology#measuring"
 },
 "rows": [
  {
   "ts": "2026-08-07T11:17:24.218Z",
   "subscribers": 19067,
   "source": 0
  },
  {
   "ts": "2026-08-09T05:51:34.411Z",
   "subscribers": 19072,
   "source": 4
  },
  {
   "ts": "2026-08-10T08:46:57.033Z",
   "subscribers": 19065,
   "source": 4
  },
  {
   "ts": "2026-08-11T07:27:48.857Z",
   "subscribers": 19072,
   "source": 4
  },
  {
   "ts": "2026-08-12T10:58:32.461Z",
   "subscribers": 19086,
   "source": 4
  },
  {
   "ts": "2026-08-13T12:48:10.450Z",
   "subscribers": 19089,
   "source": 4
  },
  {
   "ts": "2026-08-14T21:38:20.074Z",
   "subscribers": 19097,
   "source": 4
  },
  {
   "ts": "2026-08-16T16:37:44.591Z",
   "subscribers": 19096,
   "source": 4
  },
  {
   "ts": "2026-08-16T20:46:12.889Z",
   "subscribers": 19096,
   "source": 1
  },
  {
   "ts": "2026-08-17T19:37:09.974Z",
   "subscribers": 19095,
   "source": 4
  },
  {
   "ts": "2026-08-18T18:12:33.020Z",
   "subscribers": 19096,
   "source": 4
  },
  {
   "ts": "2026-08-19T20:16:24.560Z",
   "subscribers": 19102,
   "source": 4
  },
  {
   "ts": "2026-08-20T17:54:12.830Z",
   "subscribers": 19110,
   "source": 4
  },
  {
   "ts": "2026-08-21T19:49:15.530Z",
   "subscribers": 19113,
   "source": 4
  },
  {
   "ts": "2026-08-23T10:37:04.351Z",
   "subscribers": 19121,
   "source": 4
  },
  {
   "ts": "2026-08-24T23:53:47.967Z",
   "subscribers": 19119,
   "source": 4
  },
  {
   "ts": "2026-08-26T01:13:15.620Z",
   "subscribers": 19123,
   "source": 4
  },
  {
   "ts": "2026-08-27T03:43:36.113Z",
   "subscribers": 19130,
   "source": 4
  },
  {
   "ts": "2026-08-28T00:58:18.764Z",
   "subscribers": 19134,
   "source": 4
  },
  {
   "ts": "2026-08-29T00:14:23.999Z",
   "subscribers": 19144,
   "source": 4
  },
  {
   "ts": "2026-08-29T20:44:50.465Z",
   "subscribers": 19147,
   "source": 4
  },
  {
   "ts": "2026-08-31T00:07:22.415Z",
   "subscribers": 19144,
   "source": 4
  },
  {
   "ts": "2026-09-01T03:07:26.334Z",
   "subscribers": 19140,
   "source": 4
  },
  {
   "ts": "2026-09-02T04:48:48.990Z",
   "subscribers": 19136,
   "source": 4
  },
  {
   "ts": "2026-09-03T12:36:12.501Z",
   "subscribers": 19142,
   "source": 4
  },
  {
   "ts": "2026-09-05T07:41:29.316Z",
   "subscribers": 19156,
   "source": 4
  },
  {
   "ts": "2026-09-08T11:01:06.547Z",
   "subscribers": 19166,
   "source": 4
  },
  {
   "ts": "2026-09-11T07:22:08.544Z",
   "subscribers": 19189,
   "source": 4
  },
  {
   "ts": "2026-09-13T05:59:41.663Z",
   "subscribers": 19184,
   "source": 4
  },
  {
   "ts": "2026-09-14T17:18:34.042Z",
   "subscribers": 19190,
   "source": 4
  },
  {
   "ts": "2026-09-16T15:21:56.617Z",
   "subscribers": 19201,
   "source": 4
  }
 ]
}