wrong url

ssc/Pos/Ssc.hs

@@ -4,7 +4,7 @@
 -- delivery. Nodes exchange commitments, openings, and shares, and in the
 -- end arrive at a shared seed.
 --
--- See https://eprint.iacr.org/2015/889.pdf (“A Provably Secure
+-- See https://eprint.iacr.org/2016/889.pdf (“A Provably Secure
 -- Proof-of-Stake Blockchain Protocol”), section 4 for more details.
 
 {-# OPTIONS_GHC -F -pgmF autoexporter #-}