τι ειναι το bitcoin και πως λειτουργει

https://sticky-wiki.win/index.php?title=Responsible_for_a_Bitcoin_απατη_Budget%3F_12_Top_Notch_Ways_to_Spend_Your_Money_78569

Bitcoin is a digital currency which operates devoid of any type of main control or the oversight of financial institutions or federal governments. Instead it counts on peer-to-peer software program as well as cryptography.