{
 "meta": {
  "dataset": "Subscriber history — @PDFHour",
  "channel": "https://tgregister.com/channel/PDFHour",
  "retrieved_at": "2026-08-27T14:56:27.424Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 20,
  "window": {
   "from": "2026-08-07T10:15:34.998Z",
   "to": "2026-08-27T06:25:18.086Z"
  },
  "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": "2026-08-07T10:15:34.998Z",
   "subscribers": 18821,
   "source": 0
  },
  {
   "ts": "2026-08-07T23:17:13.495Z",
   "subscribers": 18820,
   "source": 4
  },
  {
   "ts": "2026-08-08T23:53:31.591Z",
   "subscribers": 18824,
   "source": 4
  },
  {
   "ts": "2026-08-09T21:52:08.613Z",
   "subscribers": 18816,
   "source": 4
  },
  {
   "ts": "2026-08-10T20:24:24.745Z",
   "subscribers": 18812,
   "source": 4
  },
  {
   "ts": "2026-08-11T18:53:11.386Z",
   "subscribers": 18801,
   "source": 4
  },
  {
   "ts": "2026-08-12T16:24:14.861Z",
   "subscribers": 18805,
   "source": 4
  },
  {
   "ts": "2026-08-13T18:06:46.439Z",
   "subscribers": 18802,
   "source": 4
  },
  {
   "ts": "2026-08-15T03:17:50.838Z",
   "subscribers": 18797,
   "source": 4
  },
  {
   "ts": "2026-08-16T16:45:26.362Z",
   "subscribers": 18769,
   "source": 4
  },
  {
   "ts": "2026-08-17T09:10:37.480Z",
   "subscribers": 18769,
   "source": 1
  },
  {
   "ts": "2026-08-17T18:49:08.166Z",
   "subscribers": 18771,
   "source": 4
  },
  {
   "ts": "2026-08-18T20:27:11.609Z",
   "subscribers": 18776,
   "source": 4
  },
  {
   "ts": "2026-08-19T20:33:26.698Z",
   "subscribers": 18770,
   "source": 4
  },
  {
   "ts": "2026-08-20T23:37:14.043Z",
   "subscribers": 18765,
   "source": 4
  },
  {
   "ts": "2026-08-22T05:15:17.716Z",
   "subscribers": 18774,
   "source": 4
  },
  {
   "ts": "2026-08-23T18:48:23.932Z",
   "subscribers": 18769,
   "source": 4
  },
  {
   "ts": "2026-08-25T01:48:50.699Z",
   "subscribers": 18772,
   "source": 4
  },
  {
   "ts": "2026-08-26T04:48:41.279Z",
   "subscribers": 18765,
   "source": 4
  },
  {
   "ts": "2026-08-27T06:25:18.086Z",
   "subscribers": 18762,
   "source": 4
  }
 ]
}