Beacon Chain

The new network’s coordination system, known as the Beacon Chain, is in charge of producing new blocks, ensuring their validity, and compensating validators with ETH for maintaining network security. 

A long-standing plank of Ethereum’s roadmap, Proof of Stake overcomes some of the accessibility, centralization, and scalability issues of Proof of Work blockchains. Instead of requiring energy from miners to validate blocks, randomly chosen validators (each of whom has a stake of 32 ETH) suggest new blocks that are then decided by the other validators. A source of randomness is included in each block, and it is combined with the other random data in the epoch.