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

Proof of Work (PoW) is a consensus mechanism used by blockchain networks to achieve distributed consensus. It is the original consensus mechanism, first used by Bitcoin in 2009. In PoW, network ...

How fork choice rules let blockchain nodes agree on one valid chain when forks appear, and how PoW and PoS pick the winner.

In the shadow of the 2008 global financial crisis, trust in the financial system was at a historic low. Banks had failed, markets had collapsed, and confidence in central institutions had been deeply ...

Forbes contributors publish independent expert analyses and insights. I’m an Associate Professor of Finance at the University of Nicosia. Sustainability is no longer optional; it is a regulatory ...

Proof of Stake (PoS) is a consensus mechanism used by blockchain networks to achieve distributed consensus. It is an alternative to Proof of Work (PoW), the original consensus mechanism used by ...