τι ειναι το bitcoin και πως λειτουργει

http://wiki.smetarik.ru/index.php?title=What_Freud_Can_Teach_Us_About_ΤΙ_ΕΙΝΑΙ_ΤΟ_BITCOIN

Bitcoin is a digital currency which runs devoid of any type of main control or the oversight of financial institutions or governments. Rather it depends on peer-to-peer software application as well as cryptography.