Rollup Technologies

Architecture

Rollup technologies represent a Layer-2 scaling solution for blockchains, fundamentally altering transaction processing by executing transactions off-chain while leveraging the security of the underlying Layer-1. This architectural shift involves bundling numerous transactions into a single proof, subsequently submitted to the main chain, reducing congestion and associated costs. Different rollup designs, such as optimistic and zero-knowledge (ZK) rollups, employ distinct methods for validating these off-chain computations, impacting finality times and computational overhead. The selection of a specific architecture is driven by trade-offs between scalability, security, and the complexity of implementation, influencing the overall system performance.