Fair Proof-of-Stake using VDF+VRF Consensus
This addresses fairness and security issues in blockchain consensus protocols, but appears incremental as it builds on existing VRF and VDF techniques.
The authors tackled the problem of fairness and security in Proof-of-Stake consensus by proposing Vixify Consensus, which uses VRF and VDF to enable participation for all addresses with positive stake and achieve proportional reward distribution while resisting attacks like Sybil and Nothing-at-stake.
We propose a new Proof-of-Stake consensus protocol constructed with a verifiable random function (VRF) and a verifiable delay function (VDF) that has the following properties: a) all addresses with positive stake can participate; b) is fair because the coin stake is proportional to the distribution of rewards; c) is resistant to several classic blockchain attacks such as Sybil attacks, "Nothing-at-stake" attacks and "Winner-takes-all" attacks. We call it Vixify Consensus.