{
 "meta": {
  "dataset": "Subscriber history — @USMLE_Files_Channel",
  "channel": "https://tgregister.com/channel/USMLE_Files_Channel",
  "retrieved_at": "2026-08-30T08:12:39.726Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 22,
  "window": {
   "from": "2026-08-07T18:04:03.835Z",
   "to": "2026-08-29T12:14:27.680Z"
  },
  "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": "2026-08-07T18:04:03.835Z",
   "subscribers": 10558,
   "source": 0
  },
  {
   "ts": "2026-08-08T00:57:39.394Z",
   "subscribers": 10561,
   "source": 4
  },
  {
   "ts": "2026-08-08T22:26:28.619Z",
   "subscribers": 10582,
   "source": 4
  },
  {
   "ts": "2026-08-10T00:29:21.140Z",
   "subscribers": 10600,
   "source": 4
  },
  {
   "ts": "2026-08-11T02:04:05.034Z",
   "subscribers": 10601,
   "source": 4
  },
  {
   "ts": "2026-08-12T00:23:09.215Z",
   "subscribers": 10607,
   "source": 4
  },
  {
   "ts": "2026-08-13T02:07:23.510Z",
   "subscribers": 10611,
   "source": 4
  },
  {
   "ts": "2026-08-14T09:24:47.146Z",
   "subscribers": 10622,
   "source": 4
  },
  {
   "ts": "2026-08-15T17:59:04.060Z",
   "subscribers": 10627,
   "source": 4
  },
  {
   "ts": "2026-08-17T10:54:28.378Z",
   "subscribers": 10644,
   "source": 4
  },
  {
   "ts": "2026-08-18T12:42:52.701Z",
   "subscribers": 10654,
   "source": 4
  },
  {
   "ts": "2026-08-19T12:38:51.382Z",
   "subscribers": 10658,
   "source": 4
  },
  {
   "ts": "2026-08-20T11:04:18.245Z",
   "subscribers": 10666,
   "source": 4
  },
  {
   "ts": "2026-08-21T11:55:14.182Z",
   "subscribers": 10670,
   "source": 4
  },
  {
   "ts": "2026-08-22T10:31:22.073Z",
   "subscribers": 10670,
   "source": 1
  },
  {
   "ts": "2026-08-22T19:26:12.014Z",
   "subscribers": 10678,
   "source": 4
  },
  {
   "ts": "2026-08-24T11:37:56.388Z",
   "subscribers": 10687,
   "source": 4
  },
  {
   "ts": "2026-08-25T08:52:37.806Z",
   "subscribers": 10694,
   "source": 4
  },
  {
   "ts": "2026-08-26T10:37:50.037Z",
   "subscribers": 10702,
   "source": 4
  },
  {
   "ts": "2026-08-27T10:16:23.399Z",
   "subscribers": 10710,
   "source": 4
  },
  {
   "ts": "2026-08-28T13:12:55.745Z",
   "subscribers": 10777,
   "source": 4
  },
  {
   "ts": "2026-08-29T12:14:27.680Z",
   "subscribers": 10839,
   "source": 4
  }
 ]
}