Welcome to the resource topic for 2016/889
Title:
Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol
Authors: Aggelos Kiayias, Alexander Russell, Bernardo David, Roman Oliynykov
Abstract:We present Ouroboros,'' the first blockchain protocol based on proof of stake with rigorous security guarantees. We establish security properties for the protocol comparable to those achieved by the bitcoin blockchain protocol. As the protocol provides a proof of stake’’ blockchain discipline, it offers qualitative efficiency advantages over blockchains based on proof of physical resources (e.g., proof of work). We also present a novel reward mechanism for incentivizing proof of stake protocols and we prove that, given this mechanism, honest behavior is an approximate Nash equilibrium, thus neutralizing attacks such as selfish mining. We also present initial evidence of the practicality of our protocol in real world settings by providing experimental results on transaction confirmation and processing.
ePrint: https://eprint.iacr.org/2016/889
Talk: https://www.youtube.com/watch?v=fBKCbhX-dXI
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