Bitcoin

a type of digital currency in which encryption techniques are used to regulate the generation of units of currency and verify the transfer of funds, operating independently of a central bank.

Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies,[13] products, and services. As of February 2015, over 100,000 merchants and vendors accepted bitcoin as payment.[14] Research produced by the University of Cambridge estimates that in 2017, there are 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin

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