{
 "meta": {
  "dataset": "Subscriber history — @cambridgepractice",
  "channel": "https://tgregister.com/channel/cambridgepractice",
  "retrieved_at": "2026-09-09T18:41:14.349Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 29,
  "window": {
   "from": "2026-08-07T00:43:37.578Z",
   "to": "2026-09-07T15:37:50.829Z"
  },
  "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": "2026-08-07T00:43:37.578Z",
   "subscribers": 41177,
   "source": 0
  },
  {
   "ts": "2026-08-07T08:28:28.512Z",
   "subscribers": 41182,
   "source": 4
  },
  {
   "ts": "2026-08-08T09:34:48.860Z",
   "subscribers": 41170,
   "source": 4
  },
  {
   "ts": "2026-08-09T09:52:49.793Z",
   "subscribers": 41152,
   "source": 4
  },
  {
   "ts": "2026-08-10T09:20:56.224Z",
   "subscribers": 41127,
   "source": 4
  },
  {
   "ts": "2026-08-11T11:24:45.538Z",
   "subscribers": 41113,
   "source": 4
  },
  {
   "ts": "2026-08-12T09:03:37.616Z",
   "subscribers": 41082,
   "source": 4
  },
  {
   "ts": "2026-08-12T20:14:43.978Z",
   "subscribers": 41082,
   "source": 1
  },
  {
   "ts": "2026-08-13T10:25:09.148Z",
   "subscribers": 41077,
   "source": 4
  },
  {
   "ts": "2026-08-14T20:25:26.816Z",
   "subscribers": 41049,
   "source": 4
  },
  {
   "ts": "2026-08-16T09:05:47.726Z",
   "subscribers": 41034,
   "source": 4
  },
  {
   "ts": "2026-08-17T14:07:28.761Z",
   "subscribers": 41023,
   "source": 4
  },
  {
   "ts": "2026-08-18T15:25:28.146Z",
   "subscribers": 41017,
   "source": 4
  },
  {
   "ts": "2026-08-19T14:13:16.018Z",
   "subscribers": 41008,
   "source": 4
  },
  {
   "ts": "2026-08-20T11:03:33.094Z",
   "subscribers": 41003,
   "source": 4
  },
  {
   "ts": "2026-08-21T11:58:50.481Z",
   "subscribers": 40978,
   "source": 4
  },
  {
   "ts": "2026-08-23T00:25:20.696Z",
   "subscribers": 40938,
   "source": 4
  },
  {
   "ts": "2026-08-24T17:47:33.143Z",
   "subscribers": 40903,
   "source": 4
  },
  {
   "ts": "2026-08-25T18:03:00.677Z",
   "subscribers": 40875,
   "source": 4
  },
  {
   "ts": "2026-08-26T21:02:24.866Z",
   "subscribers": 40838,
   "source": 4
  },
  {
   "ts": "2026-08-27T18:17:54.073Z",
   "subscribers": 40819,
   "source": 4
  },
  {
   "ts": "2026-08-28T16:46:05.845Z",
   "subscribers": 40803,
   "source": 4
  },
  {
   "ts": "2026-08-29T19:46:14.229Z",
   "subscribers": 40767,
   "source": 4
  },
  {
   "ts": "2026-08-30T19:29:13.106Z",
   "subscribers": 40738,
   "source": 4
  },
  {
   "ts": "2026-08-31T20:48:40.052Z",
   "subscribers": 40700,
   "source": 4
  },
  {
   "ts": "2026-09-01T22:57:56.380Z",
   "subscribers": 40682,
   "source": 4
  },
  {
   "ts": "2026-09-03T06:34:38.712Z",
   "subscribers": 40661,
   "source": 4
  },
  {
   "ts": "2026-09-04T21:15:28.764Z",
   "subscribers": 40645,
   "source": 4
  },
  {
   "ts": "2026-09-07T15:37:50.829Z",
   "subscribers": 40600,
   "source": 4
  }
 ]
}