{
 "meta": {
  "dataset": "Subscriber history — @USMLEMatch",
  "channel": "https://tgregister.com/channel/USMLEMatch",
  "retrieved_at": "2026-08-18T16:43:17.984Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 13,
  "window": {
   "from": "2026-08-07T00:30:47.100Z",
   "to": "2026-08-18T12:55:59.005Z"
  },
  "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": "2026-08-07T00:30:47.100Z",
   "subscribers": 20831,
   "source": 0
  },
  {
   "ts": "2026-08-07T09:46:38.873Z",
   "subscribers": 20869,
   "source": 4
  },
  {
   "ts": "2026-08-08T07:51:04.931Z",
   "subscribers": 20858,
   "source": 4
  },
  {
   "ts": "2026-08-09T07:12:28.022Z",
   "subscribers": 20842,
   "source": 4
  },
  {
   "ts": "2026-08-10T03:51:41.458Z",
   "subscribers": 20825,
   "source": 4
  },
  {
   "ts": "2026-08-11T07:01:59.841Z",
   "subscribers": 20820,
   "source": 4
  },
  {
   "ts": "2026-08-12T04:53:13.459Z",
   "subscribers": 20813,
   "source": 4
  },
  {
   "ts": "2026-08-13T04:25:54.789Z",
   "subscribers": 20795,
   "source": 4
  },
  {
   "ts": "2026-08-14T15:36:10.965Z",
   "subscribers": 20782,
   "source": 4
  },
  {
   "ts": "2026-08-16T07:18:41.666Z",
   "subscribers": 20770,
   "source": 4
  },
  {
   "ts": "2026-08-16T16:09:06.487Z",
   "subscribers": 20770,
   "source": 1
  },
  {
   "ts": "2026-08-17T14:15:17.329Z",
   "subscribers": 20754,
   "source": 4
  },
  {
   "ts": "2026-08-18T12:55:59.005Z",
   "subscribers": 20741,
   "source": 4
  }
 ]
}