{
 "meta": {
  "dataset": "Subscriber history — @AstroPhysicsBookss",
  "channel": "https://tgregister.com/channel/AstroPhysicsBookss",
  "retrieved_at": "2026-09-10T08:26:32.094Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 26,
  "window": {
   "from": "2026-08-07T09:16:03.556Z",
   "to": "2026-09-09T12:21:09.188Z"
  },
  "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": "2026-08-07T09:16:03.556Z",
   "subscribers": 14214,
   "source": 0
  },
  {
   "ts": "2026-08-07T15:23:08.078Z",
   "subscribers": 14218,
   "source": 4
  },
  {
   "ts": "2026-08-09T16:02:14.149Z",
   "subscribers": 14221,
   "source": 4
  },
  {
   "ts": "2026-08-10T17:56:18.245Z",
   "subscribers": 14216,
   "source": 4
  },
  {
   "ts": "2026-08-11T14:45:30.382Z",
   "subscribers": 14207,
   "source": 4
  },
  {
   "ts": "2026-08-12T15:04:09.077Z",
   "subscribers": 14208,
   "source": 4
  },
  {
   "ts": "2026-08-13T13:28:11.346Z",
   "subscribers": 14217,
   "source": 4
  },
  {
   "ts": "2026-08-15T00:38:05.307Z",
   "subscribers": 14229,
   "source": 4
  },
  {
   "ts": "2026-08-16T15:35:13.826Z",
   "subscribers": 14231,
   "source": 4
  },
  {
   "ts": "2026-08-17T18:56:24.877Z",
   "subscribers": 14245,
   "source": 4
  },
  {
   "ts": "2026-08-18T15:33:54.007Z",
   "subscribers": 14247,
   "source": 4
  },
  {
   "ts": "2026-08-19T10:35:45.758Z",
   "subscribers": 14247,
   "source": 1
  },
  {
   "ts": "2026-08-20T12:06:52.385Z",
   "subscribers": 14256,
   "source": 4
  },
  {
   "ts": "2026-08-23T08:46:23.559Z",
   "subscribers": 14260,
   "source": 4
  },
  {
   "ts": "2026-08-24T23:47:31.418Z",
   "subscribers": 14262,
   "source": 4
  },
  {
   "ts": "2026-08-26T01:43:17.567Z",
   "subscribers": 14263,
   "source": 4
  },
  {
   "ts": "2026-08-26T22:23:35.016Z",
   "subscribers": 14261,
   "source": 4
  },
  {
   "ts": "2026-08-27T19:58:02.922Z",
   "subscribers": 14267,
   "source": 4
  },
  {
   "ts": "2026-08-28T22:54:27.575Z",
   "subscribers": 14269,
   "source": 4
  },
  {
   "ts": "2026-08-29T22:14:23.026Z",
   "subscribers": 14276,
   "source": 4
  },
  {
   "ts": "2026-08-30T19:56:26.644Z",
   "subscribers": 14275,
   "source": 4
  },
  {
   "ts": "2026-08-31T18:07:06.408Z",
   "subscribers": 14269,
   "source": 4
  },
  {
   "ts": "2026-09-01T15:54:30.274Z",
   "subscribers": 14268,
   "source": 4
  },
  {
   "ts": "2026-09-02T18:03:33.860Z",
   "subscribers": 14261,
   "source": 4
  },
  {
   "ts": "2026-09-06T07:01:12.221Z",
   "subscribers": 14262,
   "source": 4
  },
  {
   "ts": "2026-09-09T12:21:09.188Z",
   "subscribers": 14248,
   "source": 4
  }
 ]
}