Enhancing Blockchain Proof of Stake With Active Weighted Signatures: The ADAPT Framework

This paper presents ADAPT, a framework that improves blockchain Proof of Stake (PoS, a method where validators secure the network based on how much cryptocurrency they own) systems by allowing dynamic changes to voting power without requiring trusted intermediaries or system downtime. The solution uses Generalized Lagrange Interpolation (GLI, a mathematical technique that encodes voting weights as polynomial calculations) applied to the FROST threshold signature scheme (a cryptographic method where multiple parties must cooperate to sign transactions), achieving faster weight and threshold adjustments compared to existing approaches.