There is a choice of consensus algorithms available, for example PoW used in Bitcoin or PoS, used in Peercoin. There are also other algorithms available such as Proof of Capacity (PoC) and few others, but PoW and PoS are the most common choices.
There is a choice of consensus algorithms available, for example PoW used in Bitcoin or PoS, used in Peercoin. There are also other algorithms available such as Proof of Capacity (PoC) and few others, but PoW and PoS are the most common choices.