{
 "meta": {
  "dataset": "Subscriber history — @CivilEngineeringAr",
  "channel": "https://tgregister.com/channel/CivilEngineeringAr",
  "retrieved_at": "2026-08-29T09:56:21.391Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 16,
  "window": {
   "from": "2026-08-13T12:45:35.272Z",
   "to": "2026-08-29T00:57:11.838Z"
  },
  "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": "2026-08-13T12:45:35.272Z",
   "subscribers": 12517,
   "source": 0
  },
  {
   "ts": "2026-08-14T17:53:42.307Z",
   "subscribers": 12524,
   "source": 4
  },
  {
   "ts": "2026-08-16T07:58:59.204Z",
   "subscribers": 12546,
   "source": 4
  },
  {
   "ts": "2026-08-17T13:28:09.801Z",
   "subscribers": 12550,
   "source": 4
  },
  {
   "ts": "2026-08-18T10:18:19.806Z",
   "subscribers": 12557,
   "source": 4
  },
  {
   "ts": "2026-08-19T09:35:22.406Z",
   "subscribers": 12559,
   "source": 4
  },
  {
   "ts": "2026-08-20T07:37:48.679Z",
   "subscribers": 12563,
   "source": 4
  },
  {
   "ts": "2026-08-20T18:09:17.700Z",
   "subscribers": 12563,
   "source": 1
  },
  {
   "ts": "2026-08-21T05:04:30.936Z",
   "subscribers": 12569,
   "source": 4
  },
  {
   "ts": "2026-08-22T18:15:06.640Z",
   "subscribers": 12576,
   "source": 4
  },
  {
   "ts": "2026-08-24T07:54:02.214Z",
   "subscribers": 12592,
   "source": 4
  },
  {
   "ts": "2026-08-25T07:12:25.262Z",
   "subscribers": 12603,
   "source": 4
  },
  {
   "ts": "2026-08-26T07:13:41.121Z",
   "subscribers": 12613,
   "source": 4
  },
  {
   "ts": "2026-08-27T04:06:02.959Z",
   "subscribers": 12617,
   "source": 4
  },
  {
   "ts": "2026-08-28T02:13:40.880Z",
   "subscribers": 12636,
   "source": 4
  },
  {
   "ts": "2026-08-29T00:57:11.838Z",
   "subscribers": 12647,
   "source": 4
  }
 ]
}