--- a/handouts/ho08.tex	Tue Aug 23 15:37:59 2016 +0200
+++ b/handouts/ho08.tex	Mon Sep 05 12:27:04 2016 +0100
@@ -11,6 +11,18 @@
 % https://www.benthamsgaze.org/2016/06/17/smart-contracts-beyond-the-age-of-innocence/
 % http://hackingdistributed.com/2016/06/18/analysis-of-the-dao-exploit/
 
+% hard forks
+% https://github.com/bitcoin/bips/blob/master/bip-0050.mediawiki
+
+% only 25% needed to obtain larger shares of mining
+% http://www.cs.cornell.edu/~ie53/publications/btcProcFC.pdf
+
+% re-identification attacks
+% https://cseweb.ucsd.edu/~smeiklejohn/files/imc13.pdf
+
+% bit-coin papers
+% https://crypto.stanford.edu/cs251/syllabus.html
+
 \begin{document}
 \fnote{\copyright{} Christian Urban, 2014, 2015}