Definition ∞ Data mutability describes the ability for information to be altered or changed after it has been recorded. In traditional databases, data is often mutable, allowing for updates, corrections, or deletions. This contrasts sharply with many blockchain systems where data, once committed to a block and added to the chain, becomes immutable, meaning it cannot be changed. The degree of mutability directly impacts the auditability and trustworthiness of a data record.
Context ∞ The discussion around data mutability in digital asset systems often highlights the trade-offs between immutability for security and transparency, and the practical need for data correction or legal compliance. While core blockchain transactions prioritize immutability, certain applications, particularly those involving personally identifiable information, explore controlled mutability solutions. Future innovations may seek hybrid models that offer both data integrity and necessary flexibility under specific, verifiable conditions.
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