Layer-2 Finality Models

Algorithm

Layer-2 finality models represent a critical advancement in scaling blockchain infrastructure, addressing the inherent limitations of on-chain consensus mechanisms for high-throughput applications. These models typically employ techniques like fraud proofs or validity proofs to achieve deterministic finality off-chain, subsequently anchoring the results to the main chain for security. The selection of a specific algorithm—optimistic, ZK-Rollups, or Validium—directly impacts the trade-off between computational cost, data availability requirements, and the time to achieve confirmed transactions. Consequently, understanding the algorithmic underpinnings is essential for evaluating the security and efficiency of any Layer-2 solution within a broader financial context.