{
 "meta": {
  "dataset": "Subscriber history — @usaperiodical",
  "channel": "https://tgregister.com/channel/usaperiodical",
  "retrieved_at": "2026-08-21T03:31:10.327Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 16,
  "window": {
   "from": "2026-08-06T01:04:19.995Z",
   "to": "2026-08-21T01:58:46.509Z"
  },
  "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": "2026-08-06T01:04:19.995Z",
   "subscribers": 17744,
   "source": 0
  },
  {
   "ts": "2026-08-06T02:17:38.418Z",
   "subscribers": 17744,
   "source": 3
  },
  {
   "ts": "2026-08-06T19:55:55.573Z",
   "subscribers": 17739,
   "source": 4
  },
  {
   "ts": "2026-08-07T18:52:55.244Z",
   "subscribers": 17732,
   "source": 4
  },
  {
   "ts": "2026-08-08T16:51:04.384Z",
   "subscribers": 17731,
   "source": 4
  },
  {
   "ts": "2026-08-09T17:22:22.151Z",
   "subscribers": 17718,
   "source": 4
  },
  {
   "ts": "2026-08-10T18:01:09.844Z",
   "subscribers": 17712,
   "source": 4
  },
  {
   "ts": "2026-08-11T18:16:39.298Z",
   "subscribers": 17699,
   "source": 4
  },
  {
   "ts": "2026-08-12T16:35:31.252Z",
   "subscribers": 17694,
   "source": 4
  },
  {
   "ts": "2026-08-14T00:26:02.139Z",
   "subscribers": 17681,
   "source": 4
  },
  {
   "ts": "2026-08-15T15:25:47.062Z",
   "subscribers": 17674,
   "source": 4
  },
  {
   "ts": "2026-08-16T22:18:24.448Z",
   "subscribers": 17672,
   "source": 4
  },
  {
   "ts": "2026-08-17T21:53:07.066Z",
   "subscribers": 17666,
   "source": 4
  },
  {
   "ts": "2026-08-19T00:45:36.015Z",
   "subscribers": 17663,
   "source": 4
  },
  {
   "ts": "2026-08-19T23:51:46.456Z",
   "subscribers": 17659,
   "source": 4
  },
  {
   "ts": "2026-08-21T01:58:46.509Z",
   "subscribers": 17652,
   "source": 4
  }
 ]
}