In a PPoS each user’s influence on the choice of a new block is proportional to its stake (number of tokens) in the system. Users are randomly and secretly selected to propose blocks and vote on block proposals. All online users have the chance to be selected to propose and vote. The likelihood that a user will be chosen, and the weight of its proposals and votes, are directly proportional to its stake.
Algorand Pure Proof of Stake Blockchain
Documentaries, videos and podcasts
Algorand Classroom: Pure Proof of Stake
September 29, 2020