@misc{cryptoeprint:2017:704,
    author = {Zhongxiang Zheng and Chunhuan Zhao and Haining Fan and Xiaoyun Wang},
    title = {A Key Backup Scheme Based on Bitcoin},
    howpublished = {Cryptology ePrint Archive, Report 2017/704},
    year = {2017},
    url = {https://eprint.iacr.org/2017/704},
}