A leader-based protocol is a distributed consensus mechanism where a designated node, known as the leader, is responsible for proposing new blocks or ordering transactions for a specific period. Other network participants then validate and agree upon the leader’s proposals. This structure can enhance efficiency and transaction throughput compared to leaderless systems, as it streamlines the block production process.
Context
In blockchain ecosystems, the choice between leader-based and leaderless protocols is a frequent subject of debate concerning decentralization, censorship resistance, and scalability. While leader-based systems can offer performance advantages, discussions often address potential centralization risks and the mechanisms required to ensure fair leader rotation and prevent malicious behavior. Ongoing research explores hybrid models to mitigate these concerns.
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