A single-file dashboard deployed on GitHub Pages that visualizes the lead-lag relationship between Bitcoin (BTC) and Gold (XAU/PAXG).
Concept: BTC is believed to lead gold by N days. By showing BTC's older price movement alongside XAU's recent movement — both normalized to % change from their start — you can visually test whether BTC's pattern preceded XAU's.
How it works:
- BTC: fetches 200 daily candles, displays the oldest N (configurable)
- XAU: fetches 100 daily candles, displays all 100 (the recent period)
- Both lines start at 0% — y-axis shows % change from each line's first candle
- Adjust BTC lead days input (default 100) to shift how many BTC candles are shown
Data source: Binance public API (BTCUSDT, PAXGUSDT daily klines)