The paper currency, which is a legal tender of the country is governed by the government who decides when to print, how much to print and how to distribute it. In case of Bitcoin, it doesn't have a central government as it is decentralised and doesn't have a physical form. So where do bitcoins come from? From mining. Bitcoin miners use specialized software to solve math problems and are allotted a specific number of bitcoins in exchange. This gives a smart way to issue the currency and at the same time provides an incentive for more people to mine.
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