{
 "meta": {
  "dataset": "Subscriber history — @class_12_physics_notes",
  "channel": "https://tgregister.com/channel/class_12_physics_notes",
  "retrieved_at": "2026-08-18T13:51:23.501Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 12,
  "window": {
   "from": "2026-08-06T23:01:11.774Z",
   "to": "2026-08-18T10:34:08.049Z"
  },
  "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": "2026-08-06T23:01:11.774Z",
   "subscribers": 12496,
   "source": 3
  },
  {
   "ts": "2026-08-07T04:54:17.348Z",
   "subscribers": 12495,
   "source": 4
  },
  {
   "ts": "2026-08-08T05:50:49.176Z",
   "subscribers": 12491,
   "source": 4
  },
  {
   "ts": "2026-08-09T06:42:00.039Z",
   "subscribers": 12476,
   "source": 4
  },
  {
   "ts": "2026-08-10T05:36:34.579Z",
   "subscribers": 12463,
   "source": 4
  },
  {
   "ts": "2026-08-11T02:23:55.855Z",
   "subscribers": 12452,
   "source": 4
  },
  {
   "ts": "2026-08-12T04:02:38.950Z",
   "subscribers": 12440,
   "source": 4
  },
  {
   "ts": "2026-08-13T04:04:34.890Z",
   "subscribers": 12430,
   "source": 4
  },
  {
   "ts": "2026-08-14T13:56:09.902Z",
   "subscribers": 12407,
   "source": 4
  },
  {
   "ts": "2026-08-16T04:17:44.214Z",
   "subscribers": 12394,
   "source": 4
  },
  {
   "ts": "2026-08-17T14:06:31.974Z",
   "subscribers": 12374,
   "source": 4
  },
  {
   "ts": "2026-08-18T10:34:08.049Z",
   "subscribers": 12356,
   "source": 4
  }
 ]
}