The shortage of the central authority also can make cryptocurrencies safer. "It is really hack-proof mainly because there is not any a single central issue of failure," explains David Donovan, executive vp at Publicis Sapient. Εάν μπορεί ο οποιοσδήποτε να δημιουργήσει ένα μπλοκ, τι τον εμποδίζει από το να εξαπατήσει; https://englandu471iqy3.blogars.com/profile