{
 "meta": {
  "dataset": "Subscriber history — @JapaneselearningJLPT",
  "channel": "https://tgregister.com/channel/JapaneselearningJLPT",
  "retrieved_at": "2026-09-14T07:55:52.055Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 17,
  "window": {
   "from": "2026-08-21T11:45:42.178Z",
   "to": "2026-09-13T08:00:44.956Z"
  },
  "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": "2026-08-21T11:45:42.178Z",
   "subscribers": 10525,
   "source": 3
  },
  {
   "ts": "2026-08-22T06:19:15.170Z",
   "subscribers": 10533,
   "source": 4
  },
  {
   "ts": "2026-08-23T21:33:28.304Z",
   "subscribers": 10550,
   "source": 4
  },
  {
   "ts": "2026-08-25T03:52:50.677Z",
   "subscribers": 10551,
   "source": 4
  },
  {
   "ts": "2026-08-26T01:47:06.948Z",
   "subscribers": 10550,
   "source": 4
  },
  {
   "ts": "2026-08-27T03:08:21.865Z",
   "subscribers": 10557,
   "source": 4
  },
  {
   "ts": "2026-08-28T00:43:39.336Z",
   "subscribers": 10573,
   "source": 4
  },
  {
   "ts": "2026-08-29T02:14:32.703Z",
   "subscribers": 10584,
   "source": 4
  },
  {
   "ts": "2026-08-30T00:05:30.900Z",
   "subscribers": 10590,
   "source": 4
  },
  {
   "ts": "2026-08-30T23:43:50.604Z",
   "subscribers": 10601,
   "source": 4
  },
  {
   "ts": "2026-09-01T02:34:58.226Z",
   "subscribers": 10610,
   "source": 4
  },
  {
   "ts": "2026-09-02T06:04:08.399Z",
   "subscribers": 10620,
   "source": 4
  },
  {
   "ts": "2026-09-03T14:41:45.138Z",
   "subscribers": 10636,
   "source": 4
  },
  {
   "ts": "2026-09-05T07:16:55.803Z",
   "subscribers": 10650,
   "source": 4
  },
  {
   "ts": "2026-09-08T12:21:16.556Z",
   "subscribers": 10651,
   "source": 4
  },
  {
   "ts": "2026-09-11T07:56:24.974Z",
   "subscribers": 10669,
   "source": 4
  },
  {
   "ts": "2026-09-13T08:00:44.956Z",
   "subscribers": 10672,
   "source": 4
  }
 ]
}