{
 "meta": {
  "dataset": "Subscriber history — @UPSCprepIAS",
  "channel": "https://tgregister.com/channel/UPSCprepIAS",
  "retrieved_at": "2026-08-17T22:47:02.070Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-07T16:49:21.045Z",
   "to": "2026-08-17T10:43:35.718Z"
  },
  "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": "2026-08-07T16:49:21.045Z",
   "subscribers": 200530,
   "source": 0
  },
  {
   "ts": "2026-08-07T22:06:04.459Z",
   "subscribers": 200548,
   "source": 4
  },
  {
   "ts": "2026-08-08T19:01:37.160Z",
   "subscribers": 200548,
   "source": 1
  },
  {
   "ts": "2026-08-08T22:21:15.410Z",
   "subscribers": 200585,
   "source": 4
  },
  {
   "ts": "2026-08-10T00:42:46.725Z",
   "subscribers": 200576,
   "source": 4
  },
  {
   "ts": "2026-08-11T03:11:54.649Z",
   "subscribers": 200547,
   "source": 4
  },
  {
   "ts": "2026-08-12T00:32:34.728Z",
   "subscribers": 200556,
   "source": 4
  },
  {
   "ts": "2026-08-13T03:03:56.623Z",
   "subscribers": 200548,
   "source": 4
  },
  {
   "ts": "2026-08-14T07:57:44.604Z",
   "subscribers": 200575,
   "source": 4
  },
  {
   "ts": "2026-08-15T17:37:12.674Z",
   "subscribers": 200585,
   "source": 4
  },
  {
   "ts": "2026-08-17T10:43:35.718Z",
   "subscribers": 200603,
   "source": 4
  }
 ]
}