{
 "meta": {
  "dataset": "Subscriber history — @Chem_Eng_World",
  "channel": "https://tgregister.com/channel/Chem_Eng_World",
  "retrieved_at": "2026-09-10T10:18:12.661Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 29,
  "window": {
   "from": "2026-08-06T16:50:16.906Z",
   "to": "2026-09-08T05:20:06.981Z"
  },
  "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": "2026-08-06T16:50:16.906Z",
   "subscribers": 19311,
   "source": 0
  },
  {
   "ts": "2026-08-07T03:40:51.517Z",
   "subscribers": 19313,
   "source": 4
  },
  {
   "ts": "2026-08-08T04:54:47.599Z",
   "subscribers": 19315,
   "source": 4
  },
  {
   "ts": "2026-08-09T07:12:28.022Z",
   "subscribers": 19322,
   "source": 4
  },
  {
   "ts": "2026-08-10T04:11:52.439Z",
   "subscribers": 19327,
   "source": 4
  },
  {
   "ts": "2026-08-11T05:53:09.145Z",
   "subscribers": 19333,
   "source": 4
  },
  {
   "ts": "2026-08-13T03:54:40.294Z",
   "subscribers": 19335,
   "source": 4
  },
  {
   "ts": "2026-08-14T12:27:41.297Z",
   "subscribers": 19332,
   "source": 4
  },
  {
   "ts": "2026-08-16T02:09:12.225Z",
   "subscribers": 19342,
   "source": 4
  },
  {
   "ts": "2026-08-16T20:20:45.497Z",
   "subscribers": 19342,
   "source": 1
  },
  {
   "ts": "2026-08-17T12:44:17.674Z",
   "subscribers": 19339,
   "source": 4
  },
  {
   "ts": "2026-08-18T09:33:54.748Z",
   "subscribers": 19338,
   "source": 4
  },
  {
   "ts": "2026-08-19T08:36:30.109Z",
   "subscribers": 19349,
   "source": 4
  },
  {
   "ts": "2026-08-20T11:05:50.051Z",
   "subscribers": 19359,
   "source": 4
  },
  {
   "ts": "2026-08-21T12:15:36.965Z",
   "subscribers": 19366,
   "source": 4
  },
  {
   "ts": "2026-08-22T19:38:08.495Z",
   "subscribers": 19370,
   "source": 4
  },
  {
   "ts": "2026-08-24T14:24:16.468Z",
   "subscribers": 19374,
   "source": 4
  },
  {
   "ts": "2026-08-25T14:47:10.017Z",
   "subscribers": 19373,
   "source": 4
  },
  {
   "ts": "2026-08-26T13:16:49.614Z",
   "subscribers": 19374,
   "source": 4
  },
  {
   "ts": "2026-08-27T12:25:35.602Z",
   "subscribers": 19383,
   "source": 4
  },
  {
   "ts": "2026-08-28T13:23:57.514Z",
   "subscribers": 19376,
   "source": 4
  },
  {
   "ts": "2026-08-29T10:17:18.609Z",
   "subscribers": 19374,
   "source": 4
  },
  {
   "ts": "2026-08-30T09:58:06.595Z",
   "subscribers": 19375,
   "source": 4
  },
  {
   "ts": "2026-08-31T06:47:18.534Z",
   "subscribers": 19374,
   "source": 4
  },
  {
   "ts": "2026-09-01T07:27:54.885Z",
   "subscribers": 19372,
   "source": 4
  },
  {
   "ts": "2026-09-02T06:15:49.839Z",
   "subscribers": 19374,
   "source": 4
  },
  {
   "ts": "2026-09-03T11:35:42.626Z",
   "subscribers": 19381,
   "source": 4
  },
  {
   "ts": "2026-09-05T02:14:51.360Z",
   "subscribers": 19378,
   "source": 4
  },
  {
   "ts": "2026-09-08T05:20:06.981Z",
   "subscribers": 19387,
   "source": 4
  }
 ]
}