{
 "meta": {
  "dataset": "Subscriber history — @BookkStack",
  "channel": "https://tgregister.com/channel/BookkStack",
  "retrieved_at": "2026-08-31T07:33:42.636Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 9,
  "window": {
   "from": "2026-08-07T17:48:57.684Z",
   "to": "2026-08-29T17:35:08.826Z"
  },
  "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": "2026-08-07T17:48:57.684Z",
   "subscribers": 4161,
   "source": 3
  },
  {
   "ts": "2026-08-08T08:54:47.564Z",
   "subscribers": 4164,
   "source": 4
  },
  {
   "ts": "2026-08-11T15:13:33.068Z",
   "subscribers": 4166,
   "source": 4
  },
  {
   "ts": "2026-08-14T15:27:23.194Z",
   "subscribers": 4182,
   "source": 4
  },
  {
   "ts": "2026-08-17T13:15:31.953Z",
   "subscribers": 4199,
   "source": 4
  },
  {
   "ts": "2026-08-20T12:14:38.781Z",
   "subscribers": 4210,
   "source": 4
  },
  {
   "ts": "2026-08-23T20:58:22.036Z",
   "subscribers": 4230,
   "source": 4
  },
  {
   "ts": "2026-08-26T19:44:10.314Z",
   "subscribers": 4235,
   "source": 4
  },
  {
   "ts": "2026-08-29T17:35:08.826Z",
   "subscribers": 4252,
   "source": 4
  }
 ]
}