{
 "meta": {
  "dataset": "Subscriber history — @bbc_atc",
  "channel": "https://tgregister.com/channel/bbc_atc",
  "retrieved_at": "2026-09-09T14:47:22.743Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 10,
  "window": {
   "from": "2026-08-23T09:15:23.778Z",
   "to": "2026-09-07T15:00:36.640Z"
  },
  "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": "2026-08-23T09:15:23.778Z",
   "subscribers": 9958,
   "source": 3
  },
  {
   "ts": "2026-08-24T04:45:16.336Z",
   "subscribers": 9959,
   "source": 4
  },
  {
   "ts": "2026-08-26T19:13:44.861Z",
   "subscribers": 9970,
   "source": 4
  },
  {
   "ts": "2026-08-29T23:08:52.871Z",
   "subscribers": 10002,
   "source": 4
  },
  {
   "ts": "2026-08-30T21:53:51.816Z",
   "subscribers": 10012,
   "source": 4
  },
  {
   "ts": "2026-09-01T01:17:43.961Z",
   "subscribers": 10011,
   "source": 4
  },
  {
   "ts": "2026-09-01T21:46:22.265Z",
   "subscribers": 10008,
   "source": 4
  },
  {
   "ts": "2026-09-03T01:28:12.016Z",
   "subscribers": 10030,
   "source": 4
  },
  {
   "ts": "2026-09-04T19:59:19.453Z",
   "subscribers": 10058,
   "source": 4
  },
  {
   "ts": "2026-09-07T15:00:36.640Z",
   "subscribers": 10095,
   "source": 4
  }
 ]
}