Bitcoin above 81,000 on May 13, 11PM ET?

This market will resolve to "Yes" if the "Close" price for the BTC/USDT 1 hour candle that ends on the time and date specified in the title is higher than the price 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 "1h" and "Candles" selected on the top bar. Please note that this market is about the price according to Binance BTC/USDT, not according to other exchanges or trading pairs. Price precision is determined by the number of decimal places in the source.

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