@misc{cryptoeprint:2013:796,
    author = {Stefan Dziembowski and Sebastian Faust and Vladimir Kolmogorov and Krzysztof Pietrzak},
    title = {Proofs of Space},
    howpublished = {Cryptology ePrint Archive, Report 2013/796},
    year = {2013},
    url = {https://eprint.iacr.org/2013/796},
}