{
 "meta": {
  "dataset": "Subscriber history — @Science_and_tech_upsc",
  "channel": "https://tgregister.com/channel/Science_and_tech_upsc",
  "retrieved_at": "2026-08-18T00:27:13.268Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-07T00:38:11.652Z",
   "to": "2026-08-17T15:25:55.572Z"
  },
  "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": "2026-08-07T00:38:11.652Z",
   "subscribers": 42199,
   "source": 0
  },
  {
   "ts": "2026-08-07T00:45:17.637Z",
   "subscribers": 42199,
   "source": 3
  },
  {
   "ts": "2026-08-07T22:54:07.024Z",
   "subscribers": 42185,
   "source": 4
  },
  {
   "ts": "2026-08-09T01:30:41.232Z",
   "subscribers": 42171,
   "source": 4
  },
  {
   "ts": "2026-08-10T03:40:58.814Z",
   "subscribers": 42149,
   "source": 4
  },
  {
   "ts": "2026-08-11T06:31:25.495Z",
   "subscribers": 42129,
   "source": 4
  },
  {
   "ts": "2026-08-12T08:34:26.814Z",
   "subscribers": 42116,
   "source": 4
  },
  {
   "ts": "2026-08-13T05:47:12.970Z",
   "subscribers": 42108,
   "source": 4
  },
  {
   "ts": "2026-08-14T18:15:30.375Z",
   "subscribers": 42076,
   "source": 4
  },
  {
   "ts": "2026-08-16T06:24:21.033Z",
   "subscribers": 42056,
   "source": 4
  },
  {
   "ts": "2026-08-17T15:25:55.572Z",
   "subscribers": 42023,
   "source": 4
  }
 ]
}