{
  "source_url": "https://data.binance.vision/data/spot/monthly/klines/BTCUSDT/2h/BTCUSDT-2h-2025-12.zip",
  "checksum_url": "https://data.binance.vision/data/spot/monthly/klines/BTCUSDT/2h/BTCUSDT-2h-2025-12.zip.CHECKSUM",
  "sha256": "9714aec1a8c505dd413e5cd11297d718f94acaef59436543c792c9b7f917e40d",
  "source_archive": "BTCUSDT-2h-2025-12.zip",
  "source_documentation": "https://github.com/binance/binance-public-data",
  "excerpt_from": "2025-12-11T00:00:00Z",
  "excerpt_to": "2025-12-17T22:00:00Z",
  "candle_count": 84,
  "calculation": "SMA of twenty closes; population standard deviation of the same twenty closes including current close; upper/lower=middle\u00b12SD; BandWidth%=400SD/middle.",
  "purpose": "Historical calculation example only; no simulated or recorded executions in this chart.",
  "selected_before": {
    "time": "2025-12-14T02:00:00Z",
    "open": 90293.29,
    "high": 90384.0,
    "low": 90240.01,
    "close": 90258.98,
    "basis": 90325.9955,
    "sd": 467.3855875342636,
    "upper": 91260.76667506853,
    "lower": 89391.22432493148,
    "bandwidth": 2.0697722065372135
  },
  "selected_after": {
    "time": "2025-12-14T04:00:00Z",
    "open": 90258.99,
    "high": 90329.24,
    "low": 90050.74,
    "close": 90199.06,
    "basis": 90220.809,
    "sd": 113.15871132617241,
    "upper": 90447.12642265233,
    "lower": 89994.49157734765,
    "bandwidth": 0.501696726422271
  },
  "close_leaving_window": {
    "time": "2025-12-12T12:00:00Z",
    "open": 92418.19,
    "high": 92531.38,
    "low": 92070.55,
    "close": 92302.79,
    "basis": 91318.584,
    "sd": 1107.9347461669388,
    "upper": 93534.45349233388,
    "lower": 89102.71450766613,
    "bandwidth": 4.8530526761866515
  },
  "selection_rule": "Among 2025 pairs with <0.1% absolute adjacent close change, selected a large SD contraction to illustrate window composition. It is a selected example, not a representative frequency claim."
}