{
 "meta": {
  "dataset": "Subscriber history — @mathematics_optional",
  "channel": "https://tgregister.com/channel/mathematics_optional",
  "retrieved_at": "2026-09-09T00:11:39.799Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 28,
  "window": {
   "from": "2026-08-07T04:04:44.055Z",
   "to": "2026-09-08T15:57:21.401Z"
  },
  "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": "2026-08-07T04:04:44.055Z",
   "subscribers": 10719,
   "source": 0
  },
  {
   "ts": "2026-08-07T12:41:39.995Z",
   "subscribers": 10714,
   "source": 4
  },
  {
   "ts": "2026-08-08T14:58:43.704Z",
   "subscribers": 10711,
   "source": 4
  },
  {
   "ts": "2026-08-09T13:22:38.010Z",
   "subscribers": 10707,
   "source": 4
  },
  {
   "ts": "2026-08-10T16:55:44.781Z",
   "subscribers": 10701,
   "source": 4
  },
  {
   "ts": "2026-08-11T16:02:26.597Z",
   "subscribers": 10703,
   "source": 4
  },
  {
   "ts": "2026-08-12T18:03:20.789Z",
   "subscribers": 10694,
   "source": 4
  },
  {
   "ts": "2026-08-13T18:17:30.388Z",
   "subscribers": 10695,
   "source": 4
  },
  {
   "ts": "2026-08-15T01:13:52.241Z",
   "subscribers": 10685,
   "source": 4
  },
  {
   "ts": "2026-08-16T17:38:09.268Z",
   "subscribers": 10671,
   "source": 4
  },
  {
   "ts": "2026-08-17T18:33:26.670Z",
   "subscribers": 10656,
   "source": 4
  },
  {
   "ts": "2026-08-18T15:03:24.920Z",
   "subscribers": 10652,
   "source": 4
  },
  {
   "ts": "2026-08-19T16:57:22.255Z",
   "subscribers": 10645,
   "source": 4
  },
  {
   "ts": "2026-08-20T15:55:03.090Z",
   "subscribers": 10642,
   "source": 4
  },
  {
   "ts": "2026-08-21T12:52:59.386Z",
   "subscribers": 10641,
   "source": 4
  },
  {
   "ts": "2026-08-22T10:38:13.899Z",
   "subscribers": 10641,
   "source": 1
  },
  {
   "ts": "2026-08-24T12:47:14.792Z",
   "subscribers": 10630,
   "source": 4
  },
  {
   "ts": "2026-08-26T10:08:48.753Z",
   "subscribers": 10633,
   "source": 4
  },
  {
   "ts": "2026-08-27T06:38:16.155Z",
   "subscribers": 10630,
   "source": 4
  },
  {
   "ts": "2026-08-28T03:33:34.793Z",
   "subscribers": 10625,
   "source": 4
  },
  {
   "ts": "2026-08-29T01:53:36.778Z",
   "subscribers": 10623,
   "source": 4
  },
  {
   "ts": "2026-08-30T04:37:18.457Z",
   "subscribers": 10616,
   "source": 4
  },
  {
   "ts": "2026-08-31T06:46:09.414Z",
   "subscribers": 10619,
   "source": 4
  },
  {
   "ts": "2026-09-01T07:13:49.900Z",
   "subscribers": 10617,
   "source": 4
  },
  {
   "ts": "2026-09-02T08:42:12.105Z",
   "subscribers": 10605,
   "source": 4
  },
  {
   "ts": "2026-09-03T15:17:49.036Z",
   "subscribers": 10609,
   "source": 4
  },
  {
   "ts": "2026-09-05T10:38:57.087Z",
   "subscribers": 10606,
   "source": 4
  },
  {
   "ts": "2026-09-08T15:57:21.401Z",
   "subscribers": 10590,
   "source": 4
  }
 ]
}