Definition ∞ A multi-leader extension refers to a system design that allows multiple designated leaders or proposers to concurrently generate blocks or transaction batches. This approach contrasts with single-leader models by distributing the block production responsibility across several entities. It aims to increase network throughput and reduce potential bottlenecks.
Context ∞ In highly scalable blockchain architectures, multi-leader extensions are implemented to enhance parallel processing capabilities and improve transaction capacity. News often discusses their application in sharding or other layer-2 solutions where different segments of the network can operate with independent leaders. This mechanism is vital for achieving significant performance gains in decentralized systems.