The Proof of work concept existed even before bitcoin , but Satoshi Nakamoto applied this technique to the digital currency revolutionizing the way traditional transactions are set.

In fact, PoW idea was origi...

A trustless and distributed consensus system means that if you want to send and/or receive money from someone you don’t need to trust in third-party services.

When you use traditional methods of payment, you need to trust in a third party to set your transaction (e.g. Visa, Mastercard, PayP...

Going deeper, proof of work is a requirement to define an expensive computer calculation, also called mining, that needs to be performed in order to create a new group of trustless transactions (the so-called block) on a distr...

Thanks to a PoS system validators do not have to use their computing power because the only factors that influence their chances are the total number of their own coins and the current complexity of the network.

So this possible future switch from PoW to PoS may provide the following benefi...