{
 "meta": {
  "dataset": "Subscriber history — @Class_9_Science_Notes_Book",
  "channel": "https://tgregister.com/channel/Class_9_Science_Notes_Book",
  "retrieved_at": "2026-09-09T21:32:50.554Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 28,
  "window": {
   "from": "2026-08-07T12:31:51.549Z",
   "to": "2026-09-08T08:18:28.045Z"
  },
  "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": "2026-08-07T12:31:51.549Z",
   "subscribers": 10287,
   "source": 0
  },
  {
   "ts": "2026-08-08T19:40:42.976Z",
   "subscribers": 10293,
   "source": 4
  },
  {
   "ts": "2026-08-09T21:32:50.341Z",
   "subscribers": 10304,
   "source": 4
  },
  {
   "ts": "2026-08-10T19:45:35.660Z",
   "subscribers": 10308,
   "source": 4
  },
  {
   "ts": "2026-08-11T21:32:28.624Z",
   "subscribers": 10394,
   "source": 4
  },
  {
   "ts": "2026-08-12T19:48:10.858Z",
   "subscribers": 10726,
   "source": 4
  },
  {
   "ts": "2026-08-13T23:18:54.030Z",
   "subscribers": 10885,
   "source": 4
  },
  {
   "ts": "2026-08-15T09:05:46.294Z",
   "subscribers": 11031,
   "source": 4
  },
  {
   "ts": "2026-08-16T21:04:40.215Z",
   "subscribers": 11199,
   "source": 4
  },
  {
   "ts": "2026-08-17T19:36:57.892Z",
   "subscribers": 11299,
   "source": 4
  },
  {
   "ts": "2026-08-18T20:26:11.485Z",
   "subscribers": 11410,
   "source": 4
  },
  {
   "ts": "2026-08-19T23:33:07.565Z",
   "subscribers": 11489,
   "source": 4
  },
  {
   "ts": "2026-08-20T21:17:11.895Z",
   "subscribers": 11582,
   "source": 4
  },
  {
   "ts": "2026-08-21T10:48:17.535Z",
   "subscribers": 11582,
   "source": 1
  },
  {
   "ts": "2026-08-22T00:58:42.636Z",
   "subscribers": 11660,
   "source": 4
  },
  {
   "ts": "2026-08-23T11:37:03.715Z",
   "subscribers": 11797,
   "source": 4
  },
  {
   "ts": "2026-08-25T00:57:45.239Z",
   "subscribers": 11892,
   "source": 4
  },
  {
   "ts": "2026-08-26T02:34:22.189Z",
   "subscribers": 11907,
   "source": 4
  },
  {
   "ts": "2026-08-27T05:04:58.987Z",
   "subscribers": 11953,
   "source": 4
  },
  {
   "ts": "2026-08-28T03:46:22.115Z",
   "subscribers": 11978,
   "source": 4
  },
  {
   "ts": "2026-08-29T03:43:52.741Z",
   "subscribers": 12010,
   "source": 4
  },
  {
   "ts": "2026-08-30T04:55:32.202Z",
   "subscribers": 12051,
   "source": 4
  },
  {
   "ts": "2026-08-31T06:28:12.671Z",
   "subscribers": 12104,
   "source": 4
  },
  {
   "ts": "2026-09-01T07:46:15.825Z",
   "subscribers": 12164,
   "source": 4
  },
  {
   "ts": "2026-09-02T04:28:36.127Z",
   "subscribers": 12219,
   "source": 4
  },
  {
   "ts": "2026-09-03T10:05:33.841Z",
   "subscribers": 12276,
   "source": 4
  },
  {
   "ts": "2026-09-05T02:20:53.730Z",
   "subscribers": 12287,
   "source": 4
  },
  {
   "ts": "2026-09-08T08:18:28.045Z",
   "subscribers": 12286,
   "source": 4
  }
 ]
}