Hyperledger fabric: a distributed operating system for permissioned blockchains. - Elli Androulaki; Artem Barger; Vita Bortnikov; Christian Cachin; Konstantinos Christidis; Angelo De Caro; David Enyeart; Christopher Ferris; Gennady Laventman; Yacov Manevich; Srinivasan Muralidharan; Chet Murthy; et al. (EuroSys, 2018)