@misc{cryptoeprint:2021:660,
    author = {Lei Fan and Jonathan Katz and Phuc Thai and Hong-Sheng Zhou},
    title = {A Permissionless Proof-of-Stake Blockchain with Best-Possible Unpredictability},
    howpublished = {Cryptology ePrint Archive, Report 2021/660},
    year = {2021},
    url = {https://eprint.iacr.org/2021/660},
}