Leader Based describes a consensus design where a specific node or a small group of nodes is temporarily selected to propose new blocks or validate transactions. This selection process is typically periodic, granting a designated leader the authority to order and submit data. It contrasts with peer-based systems.
Context
This design approach is often discussed in relation to blockchain performance and decentralization trade-offs. News concerning high-throughput blockchain protocols or specific consensus algorithms may highlight their leader-based nature. While it can enhance speed, considerations around leader rotation and fault tolerance remain central.
A new BFT protocol uses probabilistic quorums to achieve optimal three-step latency and O(nsqrtn) message complexity, radically improving resource efficiency.
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