“What’s interesting about Bitcoin isn’t the currency itself, but rather the underlying technology, the blockchain,” explained Primavera De Filippi, research fellow at the Berkman Center for Internet & Society at Harvard Law School, speaking at Nesta’s FutureFest. “It’s the decentralised public ledger that relies on cryptography in order to ensure that every transaction is valid.”

Source: Blockchain: How this Bitcoin technology can change the world – PC & Tech Authority