{
 "meta": {
  "dataset": "Subscriber history — @USMLEIran",
  "channel": "https://tgregister.com/channel/USMLEIran",
  "retrieved_at": "2026-09-09T19:44:54.092Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 26,
  "window": {
   "from": "2026-08-06T23:32:53.628Z",
   "to": "2026-09-08T18:16:04.985Z"
  },
  "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": "2026-08-06T23:32:53.628Z",
   "subscribers": 13126,
   "source": 3
  },
  {
   "ts": "2026-08-07T01:18:49.366Z",
   "subscribers": 13126,
   "source": 4
  },
  {
   "ts": "2026-08-08T00:43:32.155Z",
   "subscribers": 13124,
   "source": 4
  },
  {
   "ts": "2026-08-09T02:01:23.961Z",
   "subscribers": 13120,
   "source": 4
  },
  {
   "ts": "2026-08-10T00:42:43.669Z",
   "subscribers": 13116,
   "source": 4
  },
  {
   "ts": "2026-08-10T23:48:36.085Z",
   "subscribers": 13115,
   "source": 4
  },
  {
   "ts": "2026-08-12T23:02:48.721Z",
   "subscribers": 13112,
   "source": 4
  },
  {
   "ts": "2026-08-14T04:48:21.236Z",
   "subscribers": 13097,
   "source": 4
  },
  {
   "ts": "2026-08-15T16:35:28.582Z",
   "subscribers": 13094,
   "source": 4
  },
  {
   "ts": "2026-08-16T21:44:32.795Z",
   "subscribers": 13091,
   "source": 4
  },
  {
   "ts": "2026-08-17T20:18:45.961Z",
   "subscribers": 13092,
   "source": 4
  },
  {
   "ts": "2026-08-18T21:57:55.630Z",
   "subscribers": 13082,
   "source": 4
  },
  {
   "ts": "2026-08-19T21:45:23.313Z",
   "subscribers": 13080,
   "source": 4
  },
  {
   "ts": "2026-08-20T19:04:23.982Z",
   "subscribers": 13076,
   "source": 4
  },
  {
   "ts": "2026-08-23T15:16:35.410Z",
   "subscribers": 13068,
   "source": 4
  },
  {
   "ts": "2026-08-25T01:35:16.756Z",
   "subscribers": 13070,
   "source": 4
  },
  {
   "ts": "2026-08-26T02:16:02.186Z",
   "subscribers": 13068,
   "source": 4
  },
  {
   "ts": "2026-08-28T01:44:41.884Z",
   "subscribers": 13066,
   "source": 4
  },
  {
   "ts": "2026-08-29T00:16:26.136Z",
   "subscribers": 13060,
   "source": 4
  },
  {
   "ts": "2026-08-29T21:48:00.904Z",
   "subscribers": 13057,
   "source": 4
  },
  {
   "ts": "2026-08-30T22:02:45.484Z",
   "subscribers": 13052,
   "source": 4
  },
  {
   "ts": "2026-08-31T23:59:20.775Z",
   "subscribers": 13048,
   "source": 4
  },
  {
   "ts": "2026-09-02T01:29:23.910Z",
   "subscribers": 13045,
   "source": 4
  },
  {
   "ts": "2026-09-03T10:26:56.204Z",
   "subscribers": 13033,
   "source": 4
  },
  {
   "ts": "2026-09-05T09:57:54.248Z",
   "subscribers": 13027,
   "source": 4
  },
  {
   "ts": "2026-09-08T18:16:04.985Z",
   "subscribers": 13004,
   "source": 4
  }
 ]
}