{
 "meta": {
  "dataset": "Subscriber history — @internal_security_upsc_MAINS",
  "channel": "https://tgregister.com/channel/internal_security_upsc_MAINS",
  "retrieved_at": "2026-08-18T18:18:58.513Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 12,
  "window": {
   "from": "2026-08-07T17:37:50.838Z",
   "to": "2026-08-18T17:48:16.472Z"
  },
  "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": "2026-08-07T17:37:50.838Z",
   "subscribers": 36785,
   "source": 0
  },
  {
   "ts": "2026-08-08T13:34:58.981Z",
   "subscribers": 36765,
   "source": 4
  },
  {
   "ts": "2026-08-09T15:32:18.848Z",
   "subscribers": 36966,
   "source": 4
  },
  {
   "ts": "2026-08-10T15:28:26.757Z",
   "subscribers": 37109,
   "source": 4
  },
  {
   "ts": "2026-08-11T13:02:32.809Z",
   "subscribers": 37105,
   "source": 4
  },
  {
   "ts": "2026-08-12T13:45:44.103Z",
   "subscribers": 37125,
   "source": 4
  },
  {
   "ts": "2026-08-13T03:12:53.374Z",
   "subscribers": 37125,
   "source": 1
  },
  {
   "ts": "2026-08-13T15:35:56.686Z",
   "subscribers": 37143,
   "source": 4
  },
  {
   "ts": "2026-08-14T23:06:11.106Z",
   "subscribers": 37125,
   "source": 4
  },
  {
   "ts": "2026-08-16T08:37:01.894Z",
   "subscribers": 37103,
   "source": 4
  },
  {
   "ts": "2026-08-17T14:23:11.543Z",
   "subscribers": 37072,
   "source": 4
  },
  {
   "ts": "2026-08-18T17:48:16.472Z",
   "subscribers": 37048,
   "source": 4
  }
 ]
}