{
 "meta": {
  "dataset": "Subscriber history — @upsc_sci_tech_mcq",
  "channel": "https://tgregister.com/channel/upsc_sci_tech_mcq",
  "retrieved_at": "2026-08-18T02:41:30.241Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-07T16:31:41.337Z",
   "to": "2026-08-17T13:53:29.205Z"
  },
  "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": "2026-08-07T16:31:41.337Z",
   "subscribers": 41744,
   "source": 0
  },
  {
   "ts": "2026-08-08T16:04:42.913Z",
   "subscribers": 41711,
   "source": 4
  },
  {
   "ts": "2026-08-09T16:22:23.533Z",
   "subscribers": 41668,
   "source": 4
  },
  {
   "ts": "2026-08-10T18:24:41.413Z",
   "subscribers": 41645,
   "source": 4
  },
  {
   "ts": "2026-08-11T15:31:54.098Z",
   "subscribers": 41633,
   "source": 4
  },
  {
   "ts": "2026-08-12T13:13:44.094Z",
   "subscribers": 41597,
   "source": 4
  },
  {
   "ts": "2026-08-12T20:03:40.317Z",
   "subscribers": 41597,
   "source": 1
  },
  {
   "ts": "2026-08-13T12:28:10.711Z",
   "subscribers": 41582,
   "source": 4
  },
  {
   "ts": "2026-08-14T19:16:49.860Z",
   "subscribers": 41546,
   "source": 4
  },
  {
   "ts": "2026-08-16T08:42:34.099Z",
   "subscribers": 41511,
   "source": 4
  },
  {
   "ts": "2026-08-17T13:53:29.205Z",
   "subscribers": 41478,
   "source": 4
  }
 ]
}