{
 "meta": {
  "dataset": "Subscriber history — @BookTop_Books",
  "channel": "https://tgregister.com/channel/BookTop_Books",
  "retrieved_at": "2026-08-18T08:41:58.581Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 12,
  "window": {
   "from": "2026-08-05T22:45:43.314Z",
   "to": "2026-08-17T17:05:44.539Z"
  },
  "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": "2026-08-05T22:45:43.314Z",
   "subscribers": 43670,
   "source": 0
  },
  {
   "ts": "2026-08-06T01:47:49.978Z",
   "subscribers": 43670,
   "source": 3
  },
  {
   "ts": "2026-08-06T14:41:37.649Z",
   "subscribers": 43691,
   "source": 4
  },
  {
   "ts": "2026-08-07T12:05:46.844Z",
   "subscribers": 43711,
   "source": 4
  },
  {
   "ts": "2026-08-08T11:01:49.164Z",
   "subscribers": 43740,
   "source": 4
  },
  {
   "ts": "2026-08-09T09:51:03.811Z",
   "subscribers": 43775,
   "source": 4
  },
  {
   "ts": "2026-08-10T12:52:08.151Z",
   "subscribers": 43798,
   "source": 4
  },
  {
   "ts": "2026-08-11T12:45:20.030Z",
   "subscribers": 43815,
   "source": 4
  },
  {
   "ts": "2026-08-13T09:25:17.498Z",
   "subscribers": 43989,
   "source": 4
  },
  {
   "ts": "2026-08-14T20:44:42.430Z",
   "subscribers": 44142,
   "source": 4
  },
  {
   "ts": "2026-08-16T13:54:04.210Z",
   "subscribers": 44221,
   "source": 4
  },
  {
   "ts": "2026-08-17T17:05:44.539Z",
   "subscribers": 44247,
   "source": 4
  }
 ]
}