During Lift16, we focused an entire session on the Blockchain Technology powering themost used decentralized cryptocurrency in the world: Bitcoin, and tried to understand better what it is, how it works and what it can do with three international experts from the field:Stephan Tual(Slock.it, Ursium, Ethereum),Primavera De Filippi(CNRS, Harvard Law School) andJoseph Lubin(Consensus Systems, Ethereum).In this video, get the gist of their talks in 3min and never again find yourself saying"WTF is the blockchain?"Recorded on February 11, 2016, in Geneva.