Η πορεια του bitcoin

http://cristianpynz040.wpsuo.com/7-things-about-ti-einai-to-bitcoin-kai-pos-leitourgei-you-ll-kick-yourself-for-not-knowing

Bitcoin is a digital currency which operates without any kind of central control or the oversight of financial institutions or federal governments. Rather it relies upon peer-to-peer software and also cryptography.