The dearth of a central authority might also make cryptocurrencies safer. "It's hack-proof for the reason that there is no one particular central stage of failure," describes David Donovan, government vice president at Publicis Sapient. Εάν μπορεί ο οποιοσδήποτε να δημιουργήσει ένα μπλοκ, τι τον εμποδίζει από το να εξαπατήσει; https://eddiek148aiq0.wikiexpression.com/user