{
 "meta": {
  "dataset": "Subscriber history — @sfedu_study",
  "channel": "https://tgregister.com/channel/sfedu_study",
  "retrieved_at": "2026-08-17T20:23:29.737Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 12,
  "window": {
   "from": "2026-08-06T01:48:52.312Z",
   "to": "2026-08-17T11:06:04.456Z"
  },
  "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": "2026-08-06T01:48:52.312Z",
   "subscribers": 10331,
   "source": 0
  },
  {
   "ts": "2026-08-06T02:48:07.190Z",
   "subscribers": 10331,
   "source": 3
  },
  {
   "ts": "2026-08-07T01:01:39.705Z",
   "subscribers": 10336,
   "source": 4
  },
  {
   "ts": "2026-08-07T22:38:21.354Z",
   "subscribers": 10395,
   "source": 4
  },
  {
   "ts": "2026-08-08T19:36:17.252Z",
   "subscribers": 10444,
   "source": 4
  },
  {
   "ts": "2026-08-09T22:11:29.576Z",
   "subscribers": 10463,
   "source": 4
  },
  {
   "ts": "2026-08-10T23:36:42.051Z",
   "subscribers": 10507,
   "source": 4
  },
  {
   "ts": "2026-08-11T21:36:39.269Z",
   "subscribers": 10516,
   "source": 4
  },
  {
   "ts": "2026-08-13T00:48:00.926Z",
   "subscribers": 10529,
   "source": 4
  },
  {
   "ts": "2026-08-14T09:16:59.904Z",
   "subscribers": 10550,
   "source": 4
  },
  {
   "ts": "2026-08-15T20:23:41.985Z",
   "subscribers": 10559,
   "source": 4
  },
  {
   "ts": "2026-08-17T11:06:04.456Z",
   "subscribers": 10572,
   "source": 4
  }
 ]
}