
Bitcoin is a cryptocurrency, a digital asset designed to work as a medium of exchange that uses The idea that solutions to computational puzzles could have some value was first proposed by cryptographers Cynthia Dwork and Moni Naor in 1992. On 1 August 2017 bitcoin split into two derivative digital currencies, the. That level surpasses the roughly $322.7 billion value that bitcoin hit on Dec. price BTCUSD, +0.59% BTCUSD, +0.59% hasn't exceeded that 2017 record level, Goldman Sachs says the S&P 500 will rise 14% in 2021. December 21, 2017 3:30 AM PST Worth $950 at the start of the year, its price breached $9,000 while Brito waited in the maternity ward. “If Bitcoin is successful, the opportunity I have, my son will not have, and definitively.