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Winkle: A Decentralized Checkpointing for Proof-of-Stake Systems
Protocol Labs Research Talks / 2021.02.09

Protocol Labs Researcher Sarah Azouvi presents her research on Winkle, which protects any validator-based byzantine fault tolerant consensus mechanisms, such as those used in modern Proof-of-Stake blockchains, against long-range attacks where old validators’ signature keys get compromised.