In his paper, Satoshi cited several important attempts at implementing similar systems including Wei Dai’s b-money, and Adam Back’s Hashcash. The invention of Bitcoin stood on the shoulders of giants, but no one prior had put all the right pieces together, creating the first system for issuing and transferring a truly scarce digital money without central control. Satoshi tackled a number of interesting technical problems in order to address the issues of privacy, debasement, and central control in current monetary systems:
