{
 "meta": {
  "dataset": "Subscriber history — @bk_B4",
  "channel": "https://tgregister.com/channel/bk_B4",
  "retrieved_at": "2026-08-19T11:04:05.796Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 13,
  "window": {
   "from": "2026-08-05T17:18:44.583Z",
   "to": "2026-08-18T15:28:39.399Z"
  },
  "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": "2026-08-05T17:18:44.583Z",
   "subscribers": 91068,
   "source": 1
  },
  {
   "ts": "2026-08-06T03:10:29.489Z",
   "subscribers": 91071,
   "source": 4
  },
  {
   "ts": "2026-08-07T01:00:13.214Z",
   "subscribers": 91074,
   "source": 4
  },
  {
   "ts": "2026-08-08T01:22:24.941Z",
   "subscribers": 91085,
   "source": 4
  },
  {
   "ts": "2026-08-09T03:54:26.747Z",
   "subscribers": 91067,
   "source": 4
  },
  {
   "ts": "2026-08-10T05:55:54.125Z",
   "subscribers": 91053,
   "source": 4
  },
  {
   "ts": "2026-08-11T04:17:33.839Z",
   "subscribers": 91057,
   "source": 4
  },
  {
   "ts": "2026-08-12T02:04:37.599Z",
   "subscribers": 91019,
   "source": 4
  },
  {
   "ts": "2026-08-13T05:17:56.766Z",
   "subscribers": 91013,
   "source": 4
  },
  {
   "ts": "2026-08-14T17:49:07.134Z",
   "subscribers": 90949,
   "source": 4
  },
  {
   "ts": "2026-08-16T06:54:23.017Z",
   "subscribers": 90923,
   "source": 4
  },
  {
   "ts": "2026-08-17T14:36:09.186Z",
   "subscribers": 90889,
   "source": 4
  },
  {
   "ts": "2026-08-18T15:28:39.399Z",
   "subscribers": 90873,
   "source": 4
  }
 ]
}