Bitcoin’s security is based on the proof-of-work concept, where miners compete to solve complex mathematical problems to add new blocks to the Blockchain. Bitcoin’s limited supply ensures that miners will always have rewards. The rewards incentivize miners to continue mining and securing the network. With the limit hardcoded into the Bitcoin protocol, nobody can alter on interfere, including miners and developers.

The Reserve Bank of Zimbabwe (RBZ) recently announced a new digital currency, the Gold-backed dollar (GBD), designed to address the country's foreign currency...