Fefe Demeny explains what a blockchain is, a digital ledger that has revolutionized the world of finance due to its ...

People hear a lot about blockchain technology in relation to cryptocurrencies like bitcoin, which rely on blockchain systems to keep records of financial transactions between people and businesses.

Opinions expressed by Entrepreneur contributors are their own. Editor’s Note: In this series, we take you inside the mind of Nicolas Cary, CEO of the popular Bitcoin wallet service Blockchain.info, ...