Bitcoin hits an all-time high above $81,000 as cryptocurrencies surge due to Trump's election.Investors believe that the record-run of Bitcoin will continue after pro-crypto candidates won office in the U.S.Open interest in Bitcoin's price surpassing $90,000 on Deribit derivatives exchange rose to over $2.8 billion.The surge in Bitcoin's price is attributed to bullish market flows and the expectation of pro-crypto policies under the new administration.