PoS: Proof of Stake

PoS - Proof of Stake, in order to deal with the problems PoW faces, PoS uses the shares to decentralize the system. Assumes that the more shares owned, the more vested interest in the system. Some problems for this system:

1. Save social resources, do not need dependence on computing power, and eliminate waste of resources.

2. The rights and interests are more aligned. The person who owns the greater right also has more shares at the same time.

3. Transfer of equity remains slow. Since everyone has the right to vote, the overall confirmation rate is still slow.

4. The cost of being malicious is low. Although the interest is relatively strong, due to lack of a punishment mechanism, the cost of being malicious is not so high.