{
 "meta": {
  "dataset": "Subscriber history — @python_books_archive",
  "channel": "https://tgregister.com/channel/python_books_archive",
  "retrieved_at": "2026-08-13T22:48:44.833Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 8,
  "window": {
   "from": "2026-08-06T02:34:09.857Z",
   "to": "2026-08-13T09:46:49.705Z"
  },
  "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": "2026-08-06T02:34:09.857Z",
   "subscribers": 12454,
   "source": 3
  },
  {
   "ts": "2026-08-06T04:00:45.930Z",
   "subscribers": 12454,
   "source": 4
  },
  {
   "ts": "2026-08-07T07:21:10.442Z",
   "subscribers": 12446,
   "source": 4
  },
  {
   "ts": "2026-08-08T08:11:16.251Z",
   "subscribers": 12448,
   "source": 4
  },
  {
   "ts": "2026-08-09T09:53:49.462Z",
   "subscribers": 12440,
   "source": 4
  },
  {
   "ts": "2026-08-10T06:31:57.697Z",
   "subscribers": 12437,
   "source": 4
  },
  {
   "ts": "2026-08-11T04:56:51.726Z",
   "subscribers": 12434,
   "source": 4
  },
  {
   "ts": "2026-08-13T09:46:49.705Z",
   "subscribers": 12435,
   "source": 4
  }
 ]
}