Christian Cachin Marko Vukolic Blockchain Consensus Protocols in the Wild (Keynote Talk). 1:1-1:16 2017 DISC https://doi.org/10.4230/LIPIcs.DISC.2017.1 https://www.wikidata.org/entity/Q111712606 conf/wdag/2017 db/conf/wdag/disc2017.html#CachinV17