Updatable Reference String

Definition ∞ An updatable reference string is a data structure that allows for efficient modification of its contents while maintaining cryptographic integrity. This mechanism enables parts of a verifiable data set to be altered without requiring a complete re-computation of all associated proofs. It provides flexibility for dynamic information without compromising the security assurances provided by cryptographic commitments. This feature is particularly useful in systems where data evolves over time.
Context ∞ The development of updatable reference strings is significant for applications requiring dynamic data management on blockchains, such as verifiable databases or evolving identity systems. Research focuses on optimizing the computational overhead associated with updates and ensuring the security of these mutable structures. The successful implementation of updatable reference strings could significantly broaden the utility of verifiable data in decentralized environments.