How Does a Hybrid PoW/PoS System Determine the Block Proposer?
In a hybrid PoW/PoS system, the PoW mechanism is typically used to determine the initial block proposer (the miner who finds the valid hash). However, the PoS component is then used by the validators to vote on and finalize that block.
For instance, in Ethereum's past hybrid model, a PoW miner proposed the block, but a committee of PoS validators used Casper FFG to provide a fast finality guarantee for that block.
Glossar
Fast Finality
Finality ⎊ The concept of fast finality, particularly within cryptocurrency and derivatives markets, denotes a significantly reduced settlement time compared to traditional systems.
Hybrid PoW/PoS System
Synergy ⎊ A Hybrid PoW/PoS system represents a consensus mechanism integrating Proof-of-Work’s computational security with Proof-of-Stake’s energy efficiency, aiming to mitigate the drawbacks inherent in each standalone protocol.
Initial Block Proposer
Selection ⎊ The Initial Block Proposer, within Proof-of-Stake consensus mechanisms, represents the node responsible for constructing the next block and proposing it to the network, a critical function influencing transaction ordering and network security.