{
 "meta": {
  "dataset": "Subscriber history — @class_10th_study_materials",
  "channel": "https://tgregister.com/channel/class_10th_study_materials",
  "retrieved_at": "2026-09-07T16:28:27.644Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 29,
  "window": {
   "from": "2026-08-07T03:00:25.769Z",
   "to": "2026-09-06T16:59:45.267Z"
  },
  "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": "2026-08-07T03:00:25.769Z",
   "subscribers": 23230,
   "source": 0
  },
  {
   "ts": "2026-08-07T14:44:22.699Z",
   "subscribers": 23216,
   "source": 4
  },
  {
   "ts": "2026-08-08T12:31:55.405Z",
   "subscribers": 23197,
   "source": 4
  },
  {
   "ts": "2026-08-09T14:15:18.347Z",
   "subscribers": 23176,
   "source": 4
  },
  {
   "ts": "2026-08-10T16:04:20.720Z",
   "subscribers": 23158,
   "source": 4
  },
  {
   "ts": "2026-08-11T18:58:40.954Z",
   "subscribers": 23140,
   "source": 4
  },
  {
   "ts": "2026-08-12T22:05:09.618Z",
   "subscribers": 23124,
   "source": 4
  },
  {
   "ts": "2026-08-14T00:38:24.730Z",
   "subscribers": 23109,
   "source": 4
  },
  {
   "ts": "2026-08-15T05:08:48.786Z",
   "subscribers": 23084,
   "source": 4
  },
  {
   "ts": "2026-08-15T19:29:27.277Z",
   "subscribers": 23084,
   "source": 1
  },
  {
   "ts": "2026-08-16T19:18:23.702Z",
   "subscribers": 23058,
   "source": 4
  },
  {
   "ts": "2026-08-17T19:34:47.422Z",
   "subscribers": 23019,
   "source": 4
  },
  {
   "ts": "2026-08-18T17:04:07.962Z",
   "subscribers": 22998,
   "source": 4
  },
  {
   "ts": "2026-08-19T17:13:21.033Z",
   "subscribers": 22965,
   "source": 4
  },
  {
   "ts": "2026-08-20T19:27:56.358Z",
   "subscribers": 22951,
   "source": 4
  },
  {
   "ts": "2026-08-21T22:09:13.151Z",
   "subscribers": 22936,
   "source": 4
  },
  {
   "ts": "2026-08-23T12:38:31.959Z",
   "subscribers": 22892,
   "source": 4
  },
  {
   "ts": "2026-08-25T01:44:37.709Z",
   "subscribers": 22846,
   "source": 4
  },
  {
   "ts": "2026-08-26T01:15:13.550Z",
   "subscribers": 22825,
   "source": 4
  },
  {
   "ts": "2026-08-27T03:55:02.806Z",
   "subscribers": 22806,
   "source": 4
  },
  {
   "ts": "2026-08-28T00:25:06.911Z",
   "subscribers": 22798,
   "source": 4
  },
  {
   "ts": "2026-08-28T23:06:37.361Z",
   "subscribers": 22781,
   "source": 4
  },
  {
   "ts": "2026-08-29T21:55:28.308Z",
   "subscribers": 22773,
   "source": 4
  },
  {
   "ts": "2026-08-30T20:15:18.963Z",
   "subscribers": 22742,
   "source": 4
  },
  {
   "ts": "2026-08-31T17:55:43.774Z",
   "subscribers": 22718,
   "source": 4
  },
  {
   "ts": "2026-09-01T16:55:29.962Z",
   "subscribers": 22696,
   "source": 4
  },
  {
   "ts": "2026-09-02T21:45:18.617Z",
   "subscribers": 22665,
   "source": 4
  },
  {
   "ts": "2026-09-04T06:41:05.303Z",
   "subscribers": 22638,
   "source": 4
  },
  {
   "ts": "2026-09-06T16:59:45.267Z",
   "subscribers": 22586,
   "source": 4
  }
 ]
}