@misc{cryptoeprint:2014:059,
    author = {John Tromp},
    title = {Cuckoo Cycle: a memory bound graph-theoretic proof-of-work},
    howpublished = {Cryptology ePrint Archive, Report 2014/059},
    year = {2014},
    url = {https://eprint.iacr.org/2014/059},
}