The idea of digital money has long been a subject of the minds of cipherpunkers, and there have been various attempts in this direction (bit gold, RPOW, b-money), but none of them have been successful.
IMG
For example, Ecash, which was developed by David Chaum in the 1990s, failed because it was based on the economic infrastructure offered by governments and banks. Therefore, a new experimental project, Bitcoin, was interesting.
IMG
In software engineering, one of the fundamental issues taught in databases is the integrity of transactions. Otherwise, the money circulating may be reduced or multiplied. This is the technical aspect of the job and is easy to overcome.
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