{
 "meta": {
  "dataset": "Subscriber history — @USMLE_Boards_Support",
  "channel": "https://tgregister.com/channel/USMLE_Boards_Support",
  "retrieved_at": "2026-09-07T03:54:52.663Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-06T12:25:37.847Z",
   "to": "2026-09-05T19:37:38.163Z"
  },
  "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": "2026-08-06T12:25:37.847Z",
   "subscribers": 6212,
   "source": 0
  },
  {
   "ts": "2026-08-07T04:06:45.868Z",
   "subscribers": 6211,
   "source": 4
  },
  {
   "ts": "2026-08-13T01:24:03.695Z",
   "subscribers": 6203,
   "source": 4
  },
  {
   "ts": "2026-08-16T19:57:37.560Z",
   "subscribers": 6192,
   "source": 4
  },
  {
   "ts": "2026-08-20T01:21:52.625Z",
   "subscribers": 6186,
   "source": 4
  },
  {
   "ts": "2026-08-23T22:58:04.539Z",
   "subscribers": 6183,
   "source": 4
  },
  {
   "ts": "2026-08-26T13:12:00.414Z",
   "subscribers": 6180,
   "source": 4
  },
  {
   "ts": "2026-08-29T11:24:55.941Z",
   "subscribers": 6180,
   "source": 1
  },
  {
   "ts": "2026-08-29T11:35:31.295Z",
   "subscribers": 6178,
   "source": 4
  },
  {
   "ts": "2026-09-01T12:44:49.411Z",
   "subscribers": 6172,
   "source": 4
  },
  {
   "ts": "2026-09-05T19:37:38.163Z",
   "subscribers": 6163,
   "source": 4
  }
 ]
}