In a PoA network, validators are chosen based on their reputation, identity, or stake in the network. They are responsible for creating new blocks and verifying transactions.
PoA can be seen as a compromise between the centralization of PoS and the energy consumption of PoW. It is more energy-efficient than PoW and less centralized than PoS.
PoA networks are more resistant to 51% attacks than PoW networks because an attacker would need to control a majority of the validators to change the blockchain history.
PoA networks can achieve higher throughput and faster transaction confirmations than PoW networks because the validation process is faster and less resource-intensive.
PoA networks can be more predictable and stable than PoW networks because the block creation rate is constant and the validator set is fixed.