{
 "meta": {
  "dataset": "Subscriber history — @Class_10_math_notes",
  "channel": "https://tgregister.com/channel/Class_10_math_notes",
  "retrieved_at": "2026-08-18T13:03:53.373Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-06T23:01:02.584Z",
   "to": "2026-08-17T21:03:40.070Z"
  },
  "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": "2026-08-06T23:01:02.584Z",
   "subscribers": 16722,
   "source": 3
  },
  {
   "ts": "2026-08-07T01:10:14.029Z",
   "subscribers": 16720,
   "source": 4
  },
  {
   "ts": "2026-08-08T22:02:35.505Z",
   "subscribers": 16716,
   "source": 4
  },
  {
   "ts": "2026-08-10T01:41:54.854Z",
   "subscribers": 16697,
   "source": 4
  },
  {
   "ts": "2026-08-11T04:01:31.550Z",
   "subscribers": 16687,
   "source": 4
  },
  {
   "ts": "2026-08-12T00:54:55.662Z",
   "subscribers": 16674,
   "source": 4
  },
  {
   "ts": "2026-08-12T22:13:56.618Z",
   "subscribers": 16664,
   "source": 4
  },
  {
   "ts": "2026-08-14T07:26:09.663Z",
   "subscribers": 16661,
   "source": 4
  },
  {
   "ts": "2026-08-15T17:48:15.034Z",
   "subscribers": 16646,
   "source": 4
  },
  {
   "ts": "2026-08-16T22:13:33.877Z",
   "subscribers": 16638,
   "source": 4
  },
  {
   "ts": "2026-08-17T21:03:40.070Z",
   "subscribers": 16621,
   "source": 4
  }
 ]
}