Immutable Identifier

Definition ∞ An immutable identifier is a unique reference that, once assigned to a digital asset or piece of data, cannot be changed or altered. This characteristic ensures the persistence and integrity of the reference over time, making it resistant to censorship or manipulation. It is typically derived from the content of the data itself or recorded on an immutable ledger like a blockchain. Such identifiers are fundamental for establishing verifiable provenance and data authenticity.
Context ∞ Immutable identifiers are a core component of many blockchain and decentralized storage solutions, providing reliable references for digital assets and verifiable data. The discussion often centers on the practical implementation of these identifiers, particularly in systems requiring content addressing or verifiable digital provenance. Future developments will likely involve broader adoption of immutable identifiers across various digital domains, enhancing trust and auditability for digital information and assets.