{
 "meta": {
  "dataset": "Subscriber history — @testbook_ugcnet",
  "channel": "https://tgregister.com/channel/testbook_ugcnet",
  "retrieved_at": "2026-08-17T22:46:40.423Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 10,
  "window": {
   "from": "2026-08-07T01:17:53.445Z",
   "to": "2026-08-17T12:15:11.745Z"
  },
  "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": "2026-08-07T01:17:53.445Z",
   "subscribers": 49999,
   "source": 3
  },
  {
   "ts": "2026-08-07T20:43:36.012Z",
   "subscribers": 50043,
   "source": 4
  },
  {
   "ts": "2026-08-08T23:01:02.698Z",
   "subscribers": 50097,
   "source": 4
  },
  {
   "ts": "2026-08-10T00:31:17.265Z",
   "subscribers": 50126,
   "source": 4
  },
  {
   "ts": "2026-08-11T01:01:22.609Z",
   "subscribers": 50166,
   "source": 4
  },
  {
   "ts": "2026-08-11T23:12:23.799Z",
   "subscribers": 50218,
   "source": 4
  },
  {
   "ts": "2026-08-13T00:59:01.255Z",
   "subscribers": 50266,
   "source": 4
  },
  {
   "ts": "2026-08-14T13:18:45.442Z",
   "subscribers": 50341,
   "source": 4
  },
  {
   "ts": "2026-08-16T05:44:29.884Z",
   "subscribers": 50358,
   "source": 4
  },
  {
   "ts": "2026-08-17T12:15:11.745Z",
   "subscribers": 50607,
   "source": 4
  }
 ]
}