Long-range Attacks on Proof-of-Stake (PoS) Blockchains

Valeria Nikolaenko

An evaluation of long-range attacks on proof-of-stake (PoS) blockchains, where the validators leak historical keys to the adversary, with Valeria Nikolaenko (a16z crypto Research Partner). Valeria discusses approaches to mitigating these attacks and bootstrapping the blockchain from genesis without centralized checkpoints.