Will the price of Bitcoin be between $80,000 and $82,000 on April 21?

This market will resolve according to the final "Close" price of the Binance 1 minute candle for BTC/USDT 12:00 in the ET timezone (noon) on the date specified in the title. Otherwise, this market will resolve to "No". The resolution source for this market is Binance, specifically the BTC/USDT "Close" prices currently available at https://www.binance.com/en/trade/BTC_USDT with "1m" and "Candles" selected on the top bar. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. Please note that this market is about the price according to Binance BTC/USDT, not according to other exchanges or trading pairs.

Source: official resolution criteria from Polymarket. Always verify on the source page before trading.