Cryptology ePrint Archive: BibTeX Citation of Report 2017/203

    author       = {Marshall Ball and
		    Alon Rosen and
		    Manuel Sabin and
		    Prashant Nalini Vasudevan},
    title        = {Proofs of Useful Work},
    howpublished = {Cryptology ePrint Archive, Report 2017/203},
    year         = {2017},
    note         = {\url{}},

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

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