τι ειναι το bitcoin και πως λειτουργει

https://wiki-square.win/index.php?title=How_to_Outsmart_Your_Boss_on_Εξαργυρωση_bitcoin_σε_ευρω_67289

Bitcoin is a digital money which runs without any kind of main control or the oversight of financial institutions or governments. Instead it depends on peer-to-peer software program and also cryptography.