{
 "meta": {
  "dataset": "Subscriber history — @Building_Regulation",
  "channel": "https://tgregister.com/channel/Building_Regulation",
  "retrieved_at": "2026-08-27T08:32:17.925Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 20,
  "window": {
   "from": "2026-08-06T12:28:00.908Z",
   "to": "2026-08-26T23:44:11.726Z"
  },
  "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": "2026-08-06T12:28:00.908Z",
   "subscribers": 21468,
   "source": 0
  },
  {
   "ts": "2026-08-06T20:20:40.253Z",
   "subscribers": 21665,
   "source": 4
  },
  {
   "ts": "2026-08-07T23:28:21.143Z",
   "subscribers": 21728,
   "source": 4
  },
  {
   "ts": "2026-08-08T20:11:24.972Z",
   "subscribers": 21727,
   "source": 4
  },
  {
   "ts": "2026-08-09T21:55:55.325Z",
   "subscribers": 21724,
   "source": 4
  },
  {
   "ts": "2026-08-10T23:55:02.814Z",
   "subscribers": 21733,
   "source": 4
  },
  {
   "ts": "2026-08-11T23:12:33.036Z",
   "subscribers": 21738,
   "source": 4
  },
  {
   "ts": "2026-08-12T22:14:09.498Z",
   "subscribers": 21739,
   "source": 4
  },
  {
   "ts": "2026-08-14T01:18:07.197Z",
   "subscribers": 21736,
   "source": 4
  },
  {
   "ts": "2026-08-15T16:45:12.428Z",
   "subscribers": 21727,
   "source": 4
  },
  {
   "ts": "2026-08-16T02:44:19.790Z",
   "subscribers": 21727,
   "source": 1
  },
  {
   "ts": "2026-08-16T22:28:15.743Z",
   "subscribers": 21720,
   "source": 4
  },
  {
   "ts": "2026-08-18T01:32:42.983Z",
   "subscribers": 21719,
   "source": 4
  },
  {
   "ts": "2026-08-19T02:56:53.429Z",
   "subscribers": 21715,
   "source": 4
  },
  {
   "ts": "2026-08-20T00:48:45.237Z",
   "subscribers": 21706,
   "source": 4
  },
  {
   "ts": "2026-08-21T00:23:41.632Z",
   "subscribers": 21702,
   "source": 4
  },
  {
   "ts": "2026-08-22T05:44:24.589Z",
   "subscribers": 21695,
   "source": 4
  },
  {
   "ts": "2026-08-23T19:42:58.078Z",
   "subscribers": 21699,
   "source": 4
  },
  {
   "ts": "2026-08-25T03:29:24.750Z",
   "subscribers": 21700,
   "source": 4
  },
  {
   "ts": "2026-08-26T23:44:11.726Z",
   "subscribers": 21698,
   "source": 4
  }
 ]
}