{
 "meta": {
  "dataset": "Subscriber history — @EngBook",
  "channel": "https://tgregister.com/channel/EngBook",
  "retrieved_at": "2026-08-27T16:46:43.643Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 20,
  "window": {
   "from": "2026-08-07T04:06:55.267Z",
   "to": "2026-08-27T10:55:21.535Z"
  },
  "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": "2026-08-07T04:06:55.267Z",
   "subscribers": 17779,
   "source": 0
  },
  {
   "ts": "2026-08-07T21:11:22.911Z",
   "subscribers": 17796,
   "source": 4
  },
  {
   "ts": "2026-08-08T18:32:04.598Z",
   "subscribers": 17811,
   "source": 4
  },
  {
   "ts": "2026-08-09T19:04:03.611Z",
   "subscribers": 17823,
   "source": 4
  },
  {
   "ts": "2026-08-10T20:01:26.741Z",
   "subscribers": 17837,
   "source": 4
  },
  {
   "ts": "2026-08-11T21:43:30.224Z",
   "subscribers": 17874,
   "source": 4
  },
  {
   "ts": "2026-08-13T01:02:53.011Z",
   "subscribers": 17897,
   "source": 4
  },
  {
   "ts": "2026-08-14T04:17:55.763Z",
   "subscribers": 17920,
   "source": 4
  },
  {
   "ts": "2026-08-15T14:18:23.462Z",
   "subscribers": 17942,
   "source": 4
  },
  {
   "ts": "2026-08-16T21:24:30.787Z",
   "subscribers": 17963,
   "source": 4
  },
  {
   "ts": "2026-08-17T16:26:17.444Z",
   "subscribers": 17963,
   "source": 1
  },
  {
   "ts": "2026-08-17T23:07:34.299Z",
   "subscribers": 18002,
   "source": 4
  },
  {
   "ts": "2026-08-19T00:45:36.015Z",
   "subscribers": 18059,
   "source": 4
  },
  {
   "ts": "2026-08-20T03:22:30.256Z",
   "subscribers": 18093,
   "source": 4
  },
  {
   "ts": "2026-08-21T02:34:59.867Z",
   "subscribers": 18115,
   "source": 4
  },
  {
   "ts": "2026-08-22T10:34:08.632Z",
   "subscribers": 18138,
   "source": 4
  },
  {
   "ts": "2026-08-24T05:36:21.849Z",
   "subscribers": 18174,
   "source": 4
  },
  {
   "ts": "2026-08-25T08:42:32.647Z",
   "subscribers": 18177,
   "source": 4
  },
  {
   "ts": "2026-08-26T07:33:31.041Z",
   "subscribers": 18180,
   "source": 4
  },
  {
   "ts": "2026-08-27T10:55:21.535Z",
   "subscribers": 18204,
   "source": 4
  }
 ]
}