Definition ∞ Circuit integrity refers to the consistent and accurate operation of cryptographic circuits, particularly within zero-knowledge proofs. It ensures that computations performed off-chain can be verified on-chain without revealing underlying data, maintaining the validity of the proof system. A high degree of circuit integrity confirms that the mathematical constraints defining the computation are upheld, preventing fraudulent claims. This is essential for the security and trustworthiness of scaling solutions and privacy-preserving protocols.
Context ∞ Discussions around circuit integrity are central to the advancement of zero-knowledge technologies like ZK-rollups and STARKs, which aim to scale blockchain transactions. News often covers improvements in proof systems that enhance integrity, or reports on vulnerabilities discovered in existing circuits. The ongoing challenge involves balancing computational efficiency with rigorous mathematical guarantees to ensure the system remains robust against manipulation.
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