PoS

Proof-of-Stake — the second implementation of the basic blockchain network. With this method, you do not utilize a small nuclear power plant to create blocks. The creator of the next block is selected using various combinations of random selection, the number of coins in possession or the period of ownership of coins. Basically, those who hold more coins are more likely to create a new unit. Computation in this way is not that difficult.

Disadvantage:

• “Nothing-at-stake” is a problem with sites that can vote for several blocks at once.