{
 "meta": {
  "dataset": "Subscriber history — @chengducheping",
  "channel": "https://tgregister.com/channel/chengducheping",
  "retrieved_at": "2026-08-20T10:27:39.581Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 27,
  "window": {
   "from": "2026-08-06T20:05:50.974Z",
   "to": "2026-08-20T00:08:23.965Z"
  },
  "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": "2026-08-06T20:05:50.974Z",
   "subscribers": 12128,
   "source": 0
  },
  {
   "ts": "2026-08-06T20:15:20.841Z",
   "subscribers": 12128,
   "source": 3
  },
  {
   "ts": "2026-08-06T22:32:40.463Z",
   "subscribers": 12128,
   "source": 3
  },
  {
   "ts": "2026-08-06T23:34:43.266Z",
   "subscribers": 12233,
   "source": 4
  },
  {
   "ts": "2026-08-07T06:33:53.051Z",
   "subscribers": 12233,
   "source": 4
  },
  {
   "ts": "2026-08-08T01:25:43.175Z",
   "subscribers": 12305,
   "source": 4
  },
  {
   "ts": "2026-08-08T03:32:09.262Z",
   "subscribers": 12310,
   "source": 4
  },
  {
   "ts": "2026-08-09T00:54:31.815Z",
   "subscribers": 12343,
   "source": 4
  },
  {
   "ts": "2026-08-09T07:12:14.399Z",
   "subscribers": 12345,
   "source": 4
  },
  {
   "ts": "2026-08-10T04:11:52.439Z",
   "subscribers": 12405,
   "source": 4
  },
  {
   "ts": "2026-08-10T06:50:51.148Z",
   "subscribers": 12416,
   "source": 4
  },
  {
   "ts": "2026-08-11T07:16:37.633Z",
   "subscribers": 12453,
   "source": 4
  },
  {
   "ts": "2026-08-11T08:02:36.157Z",
   "subscribers": 12453,
   "source": 4
  },
  {
   "ts": "2026-08-12T08:16:16.694Z",
   "subscribers": 12487,
   "source": 4
  },
  {
   "ts": "2026-08-12T09:03:01.548Z",
   "subscribers": 12487,
   "source": 4
  },
  {
   "ts": "2026-08-13T08:25:20.106Z",
   "subscribers": 12609,
   "source": 4
  },
  {
   "ts": "2026-08-13T10:33:55.939Z",
   "subscribers": 12607,
   "source": 4
  },
  {
   "ts": "2026-08-14T20:26:48.878Z",
   "subscribers": 13889,
   "source": 4
  },
  {
   "ts": "2026-08-14T20:54:00.284Z",
   "subscribers": 13889,
   "source": 4
  },
  {
   "ts": "2026-08-16T15:13:21.295Z",
   "subscribers": 13820,
   "source": 4
  },
  {
   "ts": "2026-08-16T15:25:36.730Z",
   "subscribers": 13820,
   "source": 4
  },
  {
   "ts": "2026-08-17T17:28:35.429Z",
   "subscribers": 13833,
   "source": 4
  },
  {
   "ts": "2026-08-17T19:33:54.403Z",
   "subscribers": 13833,
   "source": 4
  },
  {
   "ts": "2026-08-18T20:35:37.779Z",
   "subscribers": 13819,
   "source": 4
  },
  {
   "ts": "2026-08-18T20:58:54.514Z",
   "subscribers": 13819,
   "source": 4
  },
  {
   "ts": "2026-08-19T19:22:30.698Z",
   "subscribers": 13450,
   "source": 4
  },
  {
   "ts": "2026-08-20T00:08:23.965Z",
   "subscribers": 13416,
   "source": 4
  }
 ]
}