{
 "meta": {
  "dataset": "Subscriber history — @USMLE_For_Arab",
  "channel": "https://tgregister.com/channel/USMLE_For_Arab",
  "retrieved_at": "2026-08-18T02:59:56.669Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-07T05:18:00.792Z",
   "to": "2026-08-17T19:18:39.771Z"
  },
  "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": "2026-08-07T05:18:00.792Z",
   "subscribers": 52038,
   "source": 0
  },
  {
   "ts": "2026-08-08T04:56:49.221Z",
   "subscribers": 52073,
   "source": 4
  },
  {
   "ts": "2026-08-09T07:51:20.924Z",
   "subscribers": 52082,
   "source": 4
  },
  {
   "ts": "2026-08-10T07:08:15.367Z",
   "subscribers": 52092,
   "source": 4
  },
  {
   "ts": "2026-08-11T07:24:58.873Z",
   "subscribers": 52108,
   "source": 4
  },
  {
   "ts": "2026-08-12T02:47:37.107Z",
   "subscribers": 52108,
   "source": 1
  },
  {
   "ts": "2026-08-12T09:02:17.313Z",
   "subscribers": 52100,
   "source": 4
  },
  {
   "ts": "2026-08-13T12:28:10.711Z",
   "subscribers": 52154,
   "source": 4
  },
  {
   "ts": "2026-08-14T19:35:41.611Z",
   "subscribers": 52432,
   "source": 4
  },
  {
   "ts": "2026-08-16T14:34:15.444Z",
   "subscribers": 52486,
   "source": 4
  },
  {
   "ts": "2026-08-17T19:18:39.771Z",
   "subscribers": 52509,
   "source": 4
  }
 ]
}