Proof-of-Availability

Definition ∞ Proof-of-Availability is a protocol that ensures data or services remain accessible and operational. It requires participants to demonstrate that they can provide requested data or services within specified timeframes. This mechanism is crucial for systems where continuous access is a fundamental requirement, such as decentralized storage or cloud services.
Context ∞ Proof-of-Availability is a concept gaining traction in discussions about decentralized infrastructure and data integrity. News often highlights its application in decentralized storage networks, where node operators must prove their data is consistently accessible to earn rewards. The development of robust auditing mechanisms for availability is a key area of ongoing research and implementation.