{
 "meta": {
  "dataset": "Subscriber history — @Engineering1997",
  "channel": "https://tgregister.com/channel/Engineering1997",
  "retrieved_at": "2026-08-14T14:27:41.962Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 4,
  "window": {
   "from": "2026-08-07T00:33:14.812Z",
   "to": "2026-08-13T15:06:44.689Z"
  },
  "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": "2026-08-07T00:33:14.812Z",
   "subscribers": 4086,
   "source": 3
  },
  {
   "ts": "2026-08-07T10:00:22.444Z",
   "subscribers": 4106,
   "source": 4
  },
  {
   "ts": "2026-08-10T05:37:07.059Z",
   "subscribers": 4207,
   "source": 4
  },
  {
   "ts": "2026-08-13T15:06:44.689Z",
   "subscribers": 4248,
   "source": 4
  }
 ]
}