Bitcoin is a form of digital currency, created and held electronically. No one controls it. Bitcoins aren’t printed, like dollars or euros or any other handheld currency – they’re produced by people, and increasingly businesses, running computers all around the world, using software that solves mathematical problems.
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What can you do with bitcoin?
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Now a day, there are plenty of merchants that accepts bitcoin for all kind of purchases such as electronics, gift cards, air plane tickets, booking hotel rooms, buying food and you can even a find online retail stores. If you want to see a nice list read the following article by CoinDesk.