Cryptology ePrint Archive: BibTeX Citation of Report 2015/578

@misc{cryptoeprint:2015:578,
    author = {Arthur Gervais and Hubert Ritzdorf and Ghassan O. Karame and Srdjan Capkun},
    title = {Tampering with the Delivery of Blocks and Transactions in Bitcoin},
    howpublished = {Cryptology ePrint Archive, Report 2015/578},
    year = {2015},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.