Definition ∞ Hash-Based PCD refers to Hash-Based Probabilistic Certifying Documents, a cryptographic primitive used for creating verifiable proofs of computation. This technology allows a prover to convince a verifier that a computation was performed correctly, using a short, hash-based proof. It is particularly relevant in zero-knowledge proofs and other privacy-preserving protocols within blockchain systems. Hash-based PCDs offer efficiency and security benefits for verifying complex operations without revealing underlying data.
Context ∞ Hash-Based PCDs are a technical component within advanced cryptographic research, with implications for scaling and privacy in blockchain. Discussions in specialized news or research publications often pertain to their theoretical security, practical implementation challenges, and potential for improving the efficiency of verifiable computation in decentralized networks.