{
 "meta": {
  "dataset": "Subscriber history — @ferrum_network",
  "channel": "https://tgregister.com/channel/ferrum_network",
  "retrieved_at": "2026-09-10T02:30:49.304Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 12,
  "window": {
   "from": "2026-08-06T11:07:42.416Z",
   "to": "2026-09-09T06:21:57.222Z"
  },
  "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": "2026-08-06T11:07:42.416Z",
   "subscribers": 5110,
   "source": 0
  },
  {
   "ts": "2026-08-09T16:21:15.615Z",
   "subscribers": 5093,
   "source": 4
  },
  {
   "ts": "2026-08-13T02:34:07.994Z",
   "subscribers": 5074,
   "source": 4
  },
  {
   "ts": "2026-08-16T15:17:19.377Z",
   "subscribers": 5061,
   "source": 4
  },
  {
   "ts": "2026-08-19T06:45:00.478Z",
   "subscribers": 5047,
   "source": 4
  },
  {
   "ts": "2026-08-22T20:23:04.281Z",
   "subscribers": 5029,
   "source": 4
  },
  {
   "ts": "2026-08-25T12:34:43.006Z",
   "subscribers": 5020,
   "source": 4
  },
  {
   "ts": "2026-08-28T12:42:25.970Z",
   "subscribers": 5006,
   "source": 4
  },
  {
   "ts": "2026-08-31T08:55:54.225Z",
   "subscribers": 4991,
   "source": 4
  },
  {
   "ts": "2026-09-01T20:02:02.605Z",
   "subscribers": 4991,
   "source": 1
  },
  {
   "ts": "2026-09-04T02:58:34.144Z",
   "subscribers": 4975,
   "source": 4
  },
  {
   "ts": "2026-09-09T06:21:57.222Z",
   "subscribers": 4953,
   "source": 4
  }
 ]
}