@misc{cryptoeprint:2015:007,
    author = {Tobias Pulls and Roel Peeters},
    title = {Balloon: A Forward-Secure Append-Only Persistent Authenticated Data Structure},
    howpublished = {Cryptology ePrint Archive, Report 2015/007},
    year = {2015},
    url = {https://eprint.iacr.org/2015/007},
}