{
 "meta": {
  "dataset": "Subscriber history — @USMLERECALLS2021",
  "channel": "https://tgregister.com/channel/USMLERECALLS2021",
  "retrieved_at": "2026-08-15T15:00:44.431Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 10,
  "window": {
   "from": "2026-08-06T05:05:09.361Z",
   "to": "2026-08-14T11:47:11.614Z"
  },
  "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": "2026-08-06T05:05:09.361Z",
   "subscribers": 31025,
   "source": 3
  },
  {
   "ts": "2026-08-06T06:20:13.534Z",
   "subscribers": 31024,
   "source": 4
  },
  {
   "ts": "2026-08-07T04:42:11.768Z",
   "subscribers": 31014,
   "source": 4
  },
  {
   "ts": "2026-08-08T06:41:35.316Z",
   "subscribers": 31015,
   "source": 4
  },
  {
   "ts": "2026-08-09T05:02:14.148Z",
   "subscribers": 31010,
   "source": 4
  },
  {
   "ts": "2026-08-10T05:58:03.687Z",
   "subscribers": 30994,
   "source": 4
  },
  {
   "ts": "2026-08-11T04:36:48.374Z",
   "subscribers": 30986,
   "source": 4
  },
  {
   "ts": "2026-08-12T07:06:58.376Z",
   "subscribers": 30981,
   "source": 4
  },
  {
   "ts": "2026-08-13T05:27:20.274Z",
   "subscribers": 30972,
   "source": 4
  },
  {
   "ts": "2026-08-14T11:47:11.614Z",
   "subscribers": 30957,
   "source": 4
  }
 ]
}