The Proof-of-Stake (PoS) consensus algorithm is introduced as an alternative to Proof-of-Work (PoW) without the energy-consuming aspect. In the case of PoS the creator of the next block is randomly chosen based on a combined selection of age and wealth, where the wealth is the 'stake' or amount of cryptocurrency that has been put to work. This is done by having it in an unlocked wallet for staking. The staking can usually be done on a VPS or computer at home.