{
 "meta": {
  "dataset": "Subscriber history — @NDA_CDS_AFCAT_SSB_Book_PDF_Notes",
  "channel": "https://tgregister.com/channel/NDA_CDS_AFCAT_SSB_Book_PDF_Notes",
  "retrieved_at": "2026-08-19T02:00:10.828Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-07T16:14:39.382Z",
   "to": "2026-08-18T15:53:28.607Z"
  },
  "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": "2026-08-07T16:14:39.382Z",
   "subscribers": 28766,
   "source": 0
  },
  {
   "ts": "2026-08-09T04:20:57.819Z",
   "subscribers": 28778,
   "source": 4
  },
  {
   "ts": "2026-08-10T07:24:31.366Z",
   "subscribers": 28798,
   "source": 4
  },
  {
   "ts": "2026-08-11T07:42:17.223Z",
   "subscribers": 28829,
   "source": 4
  },
  {
   "ts": "2026-08-12T10:33:13.497Z",
   "subscribers": 28833,
   "source": 4
  },
  {
   "ts": "2026-08-13T11:58:04.664Z",
   "subscribers": 28891,
   "source": 4
  },
  {
   "ts": "2026-08-14T17:09:08.508Z",
   "subscribers": 28891,
   "source": 1
  },
  {
   "ts": "2026-08-14T21:38:34.650Z",
   "subscribers": 28944,
   "source": 4
  },
  {
   "ts": "2026-08-16T08:18:56.830Z",
   "subscribers": 28974,
   "source": 4
  },
  {
   "ts": "2026-08-17T13:33:49.122Z",
   "subscribers": 28987,
   "source": 4
  },
  {
   "ts": "2026-08-18T15:53:28.607Z",
   "subscribers": 28990,
   "source": 4
  }
 ]
}