Definition ∞ Repeat Accumulate Accumulate describes a data processing technique, often used in cryptographic protocols, where an accumulation process is applied iteratively. This method involves repeatedly combining intermediate results to produce a final, verifiable outcome. It is particularly relevant in recursive proof systems, where proofs of smaller computations are aggregated into a single, compact proof. This process enhances efficiency.
Context ∞ In advanced cryptographic research and blockchain scaling discussions, repeat accumulate accumulate is a concept that appears when explaining the efficiency gains of certain zero-knowledge proof systems. News focusing on the technical breakthroughs in ZK-rollups or similar privacy solutions might reference this technique. Its utility lies in reducing the computational burden for verifying large batches of transactions.