Bitcoin?�s whole source is limited by its software package and will never exceed 21,000,000 coins. New coins are produced all through the process called ?�mining?? as transactions are relayed over the network, they get picked up by miners and packaged into blocks, which are consequently guarded by sophisticated cryptographic calculations. https://bitcoin45789.blogoscience.com/36498126/not-known-factual-statements-about-bitcoin