{
 "meta": {
  "dataset": "Subscriber history — @TOEFLBooks",
  "channel": "https://tgregister.com/channel/TOEFLBooks",
  "retrieved_at": "2026-09-16T18:57:57.350Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 13,
  "window": {
   "from": "2026-08-07T05:32:29.843Z",
   "to": "2026-09-13T20:38:45.744Z"
  },
  "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": "2026-08-07T05:32:29.843Z",
   "subscribers": 5244,
   "source": 3
  },
  {
   "ts": "2026-08-07T12:38:48.032Z",
   "subscribers": 5246,
   "source": 4
  },
  {
   "ts": "2026-08-10T11:48:25.222Z",
   "subscribers": 5251,
   "source": 4
  },
  {
   "ts": "2026-08-13T05:55:48.725Z",
   "subscribers": 5261,
   "source": 4
  },
  {
   "ts": "2026-08-16T22:06:13.694Z",
   "subscribers": 5277,
   "source": 4
  },
  {
   "ts": "2026-08-19T18:12:13.505Z",
   "subscribers": 5292,
   "source": 4
  },
  {
   "ts": "2026-08-23T03:47:47.686Z",
   "subscribers": 5300,
   "source": 4
  },
  {
   "ts": "2026-08-26T08:25:35.994Z",
   "subscribers": 5306,
   "source": 4
  },
  {
   "ts": "2026-08-29T14:55:55.151Z",
   "subscribers": 5311,
   "source": 4
  },
  {
   "ts": "2026-09-01T13:24:06.559Z",
   "subscribers": 5320,
   "source": 4
  },
  {
   "ts": "2026-09-05T05:41:23.362Z",
   "subscribers": 5333,
   "source": 4
  },
  {
   "ts": "2026-09-10T09:40:36.094Z",
   "subscribers": 5361,
   "source": 4
  },
  {
   "ts": "2026-09-13T20:38:45.744Z",
   "subscribers": 5369,
   "source": 4
  }
 ]
}