Definition ∞ Proof system folding is an advanced cryptographic technique that allows multiple zero-knowledge proofs to be combined or “folded” into a single, smaller proof. This process significantly reduces the computational resources and storage requirements needed to verify a series of computations. It enables recursive proof composition, making it possible to verify vast amounts of data with minimal on-chain cost. This innovation is central to scaling blockchain networks.
Context ∞ Proof system folding is a cutting-edge topic in zero-knowledge technology, crucial for the scalability and efficiency of layer-2 solutions and rollups. Researchers are actively working to optimize these folding schemes to achieve even greater compression and verification speeds. Future advancements in this area are expected to dramatically increase the transaction capacity and privacy capabilities of various blockchain protocols.