How Is the Random Group of PoS Validators Selected in PoA?
The selection of PoS validators is typically based on a combination of their stake size and a randomization algorithm. The larger the stake a participant holds, the higher the probability they will be selected to sign the PoW-generated block.
This random selection process aims to ensure decentralization and prevent pre-coordination among validators. The process often uses verifiable random functions (VRFs).