{
 "meta": {
  "dataset": "Subscriber history — @callboard",
  "channel": "https://tgregister.com/channel/callboard",
  "retrieved_at": "2026-09-10T10:18:32.109Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 10,
  "window": {
   "from": "2026-08-06T07:22:13.920Z",
   "to": "2026-09-09T21:39:21.247Z"
  },
  "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": "2026-08-06T07:22:13.920Z",
   "subscribers": 1485,
   "source": 0
  },
  {
   "ts": "2026-08-06T07:46:19.468Z",
   "subscribers": 1485,
   "source": 3
  },
  {
   "ts": "2026-08-07T05:01:55.381Z",
   "subscribers": 1484,
   "source": 4
  },
  {
   "ts": "2026-08-10T13:33:24.636Z",
   "subscribers": 1481,
   "source": 4
  },
  {
   "ts": "2026-08-13T07:15:29.723Z",
   "subscribers": 1477,
   "source": 4
  },
  {
   "ts": "2026-08-16T19:44:52.792Z",
   "subscribers": 1476,
   "source": 4
  },
  {
   "ts": "2026-08-19T10:18:08.894Z",
   "subscribers": 1475,
   "source": 4
  },
  {
   "ts": "2026-08-25T22:45:47.988Z",
   "subscribers": 1473,
   "source": 4
  },
  {
   "ts": "2026-09-04T08:41:06.105Z",
   "subscribers": 1472,
   "source": 4
  },
  {
   "ts": "2026-09-09T21:39:21.247Z",
   "subscribers": 1470,
   "source": 4
  }
 ]
}