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Off-Chain Storage

Definition

Off-chain storage involves keeping data separate from a blockchain’s main ledger. This method reduces the amount of information directly recorded on the distributed ledger, thereby enhancing scalability and lowering transaction costs associated with on-chain data retention. It typically employs various decentralized or centralized storage solutions, with cryptographic proofs often used to verify data integrity and accessibility when needed on-chain. This separation optimizes blockchain performance by reserving on-chain space for critical transaction records and state changes.