{
 "meta": {
  "dataset": "Subscriber history — @bookhapdf",
  "channel": "https://tgregister.com/channel/bookhapdf",
  "retrieved_at": "2026-08-15T08:41:59.454Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 9,
  "window": {
   "from": "2026-08-05T17:18:45.731Z",
   "to": "2026-08-13T11:38:23.945Z"
  },
  "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": "2026-08-05T17:18:45.731Z",
   "subscribers": 75653,
   "source": 1
  },
  {
   "ts": "2026-08-06T17:00:32.125Z",
   "subscribers": 75644,
   "source": 4
  },
  {
   "ts": "2026-08-07T13:45:46.719Z",
   "subscribers": 75646,
   "source": 4
  },
  {
   "ts": "2026-08-08T11:05:16.514Z",
   "subscribers": 75648,
   "source": 4
  },
  {
   "ts": "2026-08-09T09:53:49.462Z",
   "subscribers": 75644,
   "source": 4
  },
  {
   "ts": "2026-08-10T10:15:45.511Z",
   "subscribers": 75637,
   "source": 4
  },
  {
   "ts": "2026-08-11T10:04:03.527Z",
   "subscribers": 75634,
   "source": 4
  },
  {
   "ts": "2026-08-12T12:45:51.782Z",
   "subscribers": 75626,
   "source": 4
  },
  {
   "ts": "2026-08-13T11:38:23.945Z",
   "subscribers": 75625,
   "source": 4
  }
 ]
}