3 \usepackage{../graphics}

     3 \usepackage{../graphics}

     4 \usepackage{../langs}

     4 \usepackage{../langs}

     5 \usepackage{../data}

     5 \usepackage{../data}

     6 

     6 

     7 %https://crypto.stanford.edu/cs251/

     7 %https://crypto.stanford.edu/cs251/

     8 

     9 

     9 \begin{document}

    10 \begin{document}

    10 \fnote{\copyright{} Christian Urban, 2014, 2015}

    11 \fnote{\copyright{} Christian Urban, 2014, 2015}

    11 

    12 

    12 \section*{Handout 8 (Bitcoins)}

    13 \section*{Handout 8 (Bitcoins)}