Cryptology ePrint Archive: BibTeX Citation of Report 2015/796

@misc{cryptoeprint:2015:796,
    author = {Kartik Nayak and Srijan Kumar and Andrew Miller and Elaine Shi},
    title = {Stubborn Mining: Generalizing Selfish Mining and Combining with an Eclipse Attack},
    howpublished = {Cryptology ePrint Archive, Report 2015/796},
    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.