A new proof-of-work mechanism that can shield bitcoin’s blockchain against the 51% attack Posted on January 10, 2017 by 247 BTC 247 BTC Bitcoin News Search 1 News - 247 News - 247 Bitcoin - 1 Search Search for: submitted by /u/rabidus_ [link] [comments] 247 BTC Bitcoin News Search 1 News - 247 News - 247 Bitcoin - 1 Search Search for: