1. Proof of Reserves,2014
2. Hashcash – A Denial of Service Counter-Measure;Black,2002
3. Bitcoin vs. The NSA'a Quantum Computer;Chris,2014
4. Delegated Proof of Stake (DPOS) White Paper by Daniel Larimer [WWW Document];Daniel,2014
5. How A Mining Minopoly Can Attack Bitcoin;Eyal,2014