Verifiable

Verifiable is an adjective meaning capable of being proven true, accurate, or legitimate. In technical contexts, verifiability refers to the property that a product, statement, data set, or computation can be checked and confirmed by independent observers, often using evidence, logs, or cryptographic proofs. Verifiability supports accountability, trust, and quality assurance across fields such as science, law, finance, and information technology.

In digital identity and credentials, verifiable credentials (VCs) are a W3C standard for expressing cryptographically verifiable claims about a subject. Issuers sign credentials that holders can present to verifiers; the process supports portability, revocation, and privacy-enhancing features like selective disclosure and zero-knowledge proofs.

In computing, verifiable computing refers to methods that allow a client to verify that a remote computation was performed correctly without redoing the work. Techniques include cryptographic proofs, succinct proofs, and data structures such as Merkle trees, as well as trusted execution environments under certain assumptions.

In blockchain and distributed systems, verifiable randomness and verifiable delay functions provide output that can be checked for fairness and timing properties, enabling secure leader election, consensus, and lottery-like applications.

The term is also used as a brand or name in businesses and products offering verification services. Overall, verifiability remains a central goal in designing trustworthy systems that enable independent confirmation of truthfulness.