The conference hall of the New York Marriott Marquis was in a fever. Today was the first day of Consensus 2016, the second annual blockchain technology summit. Blockchain is the underlying mechanism for bitcoin, and the conference has been shaken by the possible unmasking of the electronic currency’s mysterious inventor. The BBC and the Economist published Craig Wright’s claim to be Satoshi Nakamoto early this morning. Wright had been rumoured to be the father of bitcoin since December 2015, but he’d always denied it, until today.