Definition ∞ Proof batching is a cryptographic technique used in scaling solutions, particularly zero-knowledge rollups, where multiple individual proofs for separate transactions are combined into a single, aggregated proof. This consolidated proof can then be verified on the main blockchain more efficiently. It significantly reduces on-chain data and computational costs.
Context ∞ Proof batching is a central innovation in the development of layer-2 scaling solutions, frequently highlighted in news regarding blockchain throughput improvements. Its continued advancement is critical for making decentralized applications more affordable and accessible to a wider user base.