Sleepy Security Model

Definition ∞ A sleepy security model describes a blockchain consensus mechanism where a small, randomly selected subset of validators is active at any given time to confirm transactions. This approach aims to reduce computational overhead and improve scalability compared to models requiring all participants to be constantly active. While efficient, it presents specific security considerations regarding the selection process and potential vulnerabilities. The model prioritizes resource conservation for network operation.
Context ∞ The discussion around sleepy security models is often relevant in sharded blockchain architectures or specific layer-2 solutions seeking high throughput. A key debate involves ensuring the randomness and fairness of validator selection to prevent collusion or censorship. Future developments will likely concentrate on cryptographic advancements to strengthen the integrity of committee selection and improve fraud detection within these systems. Balancing efficiency with robust security remains a central challenge.