The concept of copyright emerged because people needed secure, decentralized digital transactions. David Chaum created an anonymous copyright called Digicash in 1995. Nick Szabo later designed Bit Gold in 1998 that introduced a system where users earned rewards by solving cryptographic problems with their computing power. https://gizmodo.uol.com.br/안전한-바카라-사이트-에볼루션-카지노-사이트-top15