{
 "meta": {
  "dataset": "Subscriber history — @pdfmaterialforupsc",
  "channel": "https://tgregister.com/channel/pdfmaterialforupsc",
  "retrieved_at": "2026-08-18T05:34:37.846Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 11,
  "window": {
   "from": "2026-08-07T18:35:57.988Z",
   "to": "2026-08-17T12:46:19.147Z"
  },
  "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": "2026-08-07T18:35:57.988Z",
   "subscribers": 13927,
   "source": 0
  },
  {
   "ts": "2026-08-07T18:45:44.207Z",
   "subscribers": 13927,
   "source": 3
  },
  {
   "ts": "2026-08-08T00:47:34.920Z",
   "subscribers": 13923,
   "source": 4
  },
  {
   "ts": "2026-08-08T23:02:43.168Z",
   "subscribers": 13919,
   "source": 4
  },
  {
   "ts": "2026-08-10T02:02:16.428Z",
   "subscribers": 13912,
   "source": 4
  },
  {
   "ts": "2026-08-11T02:31:22.432Z",
   "subscribers": 13908,
   "source": 4
  },
  {
   "ts": "2026-08-12T06:06:32.687Z",
   "subscribers": 13897,
   "source": 4
  },
  {
   "ts": "2026-08-13T06:57:17.245Z",
   "subscribers": 13888,
   "source": 4
  },
  {
   "ts": "2026-08-14T13:45:53.509Z",
   "subscribers": 13878,
   "source": 4
  },
  {
   "ts": "2026-08-16T04:14:25.702Z",
   "subscribers": 13866,
   "source": 4
  },
  {
   "ts": "2026-08-17T12:46:19.147Z",
   "subscribers": 13856,
   "source": 4
  }
 ]
}