{
 "meta": {
  "dataset": "Subscriber history — @EnglishZoneTextBooks",
  "channel": "https://tgregister.com/channel/EnglishZoneTextBooks",
  "retrieved_at": "2026-09-02T05:30:56.823Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 25,
  "window": {
   "from": "2026-08-07T19:07:49.681Z",
   "to": "2026-09-02T01:08:53.486Z"
  },
  "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": "2026-08-07T19:07:49.681Z",
   "subscribers": 25652,
   "source": 0
  },
  {
   "ts": "2026-08-08T16:38:32.411Z",
   "subscribers": 25675,
   "source": 4
  },
  {
   "ts": "2026-08-09T16:21:15.615Z",
   "subscribers": 25696,
   "source": 4
  },
  {
   "ts": "2026-08-10T13:51:11.321Z",
   "subscribers": 25717,
   "source": 4
  },
  {
   "ts": "2026-08-11T13:06:22.854Z",
   "subscribers": 25747,
   "source": 4
  },
  {
   "ts": "2026-08-12T13:26:21.546Z",
   "subscribers": 25775,
   "source": 4
  },
  {
   "ts": "2026-08-13T18:06:46.439Z",
   "subscribers": 25815,
   "source": 4
  },
  {
   "ts": "2026-08-14T20:53:39.836Z",
   "subscribers": 25815,
   "source": 1
  },
  {
   "ts": "2026-08-15T01:44:48.411Z",
   "subscribers": 25847,
   "source": 4
  },
  {
   "ts": "2026-08-16T17:45:00.768Z",
   "subscribers": 25880,
   "source": 4
  },
  {
   "ts": "2026-08-17T20:37:11.546Z",
   "subscribers": 25901,
   "source": 4
  },
  {
   "ts": "2026-08-18T22:06:27.479Z",
   "subscribers": 25945,
   "source": 4
  },
  {
   "ts": "2026-08-19T18:46:22.642Z",
   "subscribers": 25984,
   "source": 4
  },
  {
   "ts": "2026-08-20T18:06:53.057Z",
   "subscribers": 26003,
   "source": 4
  },
  {
   "ts": "2026-08-22T05:48:47.658Z",
   "subscribers": 26043,
   "source": 4
  },
  {
   "ts": "2026-08-23T16:19:16.727Z",
   "subscribers": 26071,
   "source": 4
  },
  {
   "ts": "2026-08-25T01:42:48.328Z",
   "subscribers": 26114,
   "source": 4
  },
  {
   "ts": "2026-08-25T22:34:23.629Z",
   "subscribers": 26146,
   "source": 4
  },
  {
   "ts": "2026-08-27T00:08:24.425Z",
   "subscribers": 26173,
   "source": 4
  },
  {
   "ts": "2026-08-27T22:03:57.335Z",
   "subscribers": 26194,
   "source": 4
  },
  {
   "ts": "2026-08-28T22:16:16.544Z",
   "subscribers": 26220,
   "source": 4
  },
  {
   "ts": "2026-08-29T20:55:02.889Z",
   "subscribers": 26244,
   "source": 4
  },
  {
   "ts": "2026-08-30T23:08:12.496Z",
   "subscribers": 26261,
   "source": 4
  },
  {
   "ts": "2026-09-01T01:35:41.974Z",
   "subscribers": 26319,
   "source": 4
  },
  {
   "ts": "2026-09-02T01:08:53.486Z",
   "subscribers": 26360,
   "source": 4
  }
 ]
}