Definition ∞ Proof size efficiency refers to the compactness of a cryptographic proof, specifically the amount of data required to represent and transmit it. A highly efficient proof has a minimal size, allowing for faster network propagation and reduced storage requirements. This characteristic is crucial for scalable and resource-optimized blockchain systems. It directly impacts network performance.
Context ∞ In the realm of zero-knowledge proofs and verifiable computation, achieving optimal proof size efficiency is a central research goal. News about new cryptographic constructions or layer-2 scaling solutions often highlights improvements in reducing proof sizes. Enhanced proof size efficiency directly contributes to better network scalability, lower transaction costs, and increased accessibility on various blockchains.