{
 "meta": {
  "dataset": "Subscriber history — @nhdat_itcc",
  "channel": "https://tgregister.com/channel/nhdat_itcc",
  "retrieved_at": "2026-09-16T19:24:59.030Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 7,
  "window": {
   "from": "2026-08-24T13:31:39.554Z",
   "to": "2026-09-14T01:00:56.958Z"
  },
  "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": "2026-08-24T13:31:39.554Z",
   "subscribers": 5478,
   "source": 3
  },
  {
   "ts": "2026-08-25T07:13:37.954Z",
   "subscribers": 5478,
   "source": 4
  },
  {
   "ts": "2026-08-28T12:27:44.079Z",
   "subscribers": 5473,
   "source": 4
  },
  {
   "ts": "2026-08-31T22:19:01.444Z",
   "subscribers": 5462,
   "source": 4
  },
  {
   "ts": "2026-09-04T23:36:34.591Z",
   "subscribers": 5444,
   "source": 4
  },
  {
   "ts": "2026-09-10T12:58:21.932Z",
   "subscribers": 5433,
   "source": 4
  },
  {
   "ts": "2026-09-14T01:00:56.958Z",
   "subscribers": 5428,
   "source": 4
  }
 ]
}