Validium State Storage

Architecture

Validium State Storage represents a Layer-2 scaling solution for blockchains, specifically designed to enhance transaction throughput and reduce costs associated with on-chain data availability. It achieves this by executing transactions off-chain while maintaining cryptographic proofs of validity, posted to the main chain, ensuring data integrity without requiring full transaction data replication. This architectural approach distinguishes it from rollups, as Validium utilizes validity proofs but relies on an external Data Availability Committee (DAC) for data storage, impacting security assumptions and trust models. Consequently, the design necessitates careful consideration of DAC selection and governance to mitigate potential risks related to data withholding or malicious behavior, influencing the overall system resilience.