{
 "meta": {
  "dataset": "Subscriber history — @UPSCMappingGeography",
  "channel": "https://tgregister.com/channel/UPSCMappingGeography",
  "retrieved_at": "2026-09-08T18:28:54.393Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 27,
  "window": {
   "from": "2026-08-07T17:31:00.084Z",
   "to": "2026-09-08T08:58:52.683Z"
  },
  "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": "2026-08-07T17:31:00.084Z",
   "subscribers": 21771,
   "source": 0
  },
  {
   "ts": "2026-08-08T09:46:17.489Z",
   "subscribers": 21768,
   "source": 4
  },
  {
   "ts": "2026-08-09T09:51:45.997Z",
   "subscribers": 21764,
   "source": 4
  },
  {
   "ts": "2026-08-10T09:21:17.479Z",
   "subscribers": 21770,
   "source": 4
  },
  {
   "ts": "2026-08-11T08:46:25.877Z",
   "subscribers": 21767,
   "source": 4
  },
  {
   "ts": "2026-08-13T10:26:23.078Z",
   "subscribers": 21764,
   "source": 4
  },
  {
   "ts": "2026-08-14T21:35:42.880Z",
   "subscribers": 21766,
   "source": 4
  },
  {
   "ts": "2026-08-16T02:41:08.872Z",
   "subscribers": 21766,
   "source": 1
  },
  {
   "ts": "2026-08-16T08:54:46.013Z",
   "subscribers": 21761,
   "source": 4
  },
  {
   "ts": "2026-08-17T16:15:31.805Z",
   "subscribers": 21770,
   "source": 4
  },
  {
   "ts": "2026-08-18T14:35:47.190Z",
   "subscribers": 21781,
   "source": 4
  },
  {
   "ts": "2026-08-19T14:22:50.960Z",
   "subscribers": 21775,
   "source": 4
  },
  {
   "ts": "2026-08-20T14:44:50.772Z",
   "subscribers": 21769,
   "source": 4
  },
  {
   "ts": "2026-08-21T20:57:03.289Z",
   "subscribers": 21775,
   "source": 4
  },
  {
   "ts": "2026-08-23T14:03:14.289Z",
   "subscribers": 21764,
   "source": 4
  },
  {
   "ts": "2026-08-25T02:34:16.406Z",
   "subscribers": 21750,
   "source": 4
  },
  {
   "ts": "2026-08-26T02:32:58.807Z",
   "subscribers": 21738,
   "source": 4
  },
  {
   "ts": "2026-08-27T04:27:25.424Z",
   "subscribers": 21739,
   "source": 4
  },
  {
   "ts": "2026-08-28T05:25:24.509Z",
   "subscribers": 21737,
   "source": 4
  },
  {
   "ts": "2026-08-29T03:23:08.308Z",
   "subscribers": 21738,
   "source": 4
  },
  {
   "ts": "2026-08-30T01:41:49.400Z",
   "subscribers": 21735,
   "source": 4
  },
  {
   "ts": "2026-08-30T22:22:52.901Z",
   "subscribers": 21727,
   "source": 4
  },
  {
   "ts": "2026-09-01T01:18:29.454Z",
   "subscribers": 21732,
   "source": 4
  },
  {
   "ts": "2026-09-01T23:06:13.738Z",
   "subscribers": 21730,
   "source": 4
  },
  {
   "ts": "2026-09-03T07:07:26.261Z",
   "subscribers": 21733,
   "source": 4
  },
  {
   "ts": "2026-09-05T05:56:07.292Z",
   "subscribers": 21725,
   "source": 4
  },
  {
   "ts": "2026-09-08T08:58:52.683Z",
   "subscribers": 21726,
   "source": 4
  }
 ]
}