Now a lot of people talking about the regulation of cryptocurrency, but in turn, in anonymous coins will attract the attention of those who do not want to be controlled. One such anonymous coin is Zcoin. I see good news Zcoin will launch their new privacy protocol Sigma which replaces Zerocoin. 11 jul github.com/zcoinofficial/zcoin/commit/8b7d49ef63387ab7b813ea95844369fb08995ef4