Bitcoin is a digital currency and a payments system that exists solely on the internet . It was introduced in 2009 and is the first decentralized digital currency , meaning it does not rely on a central bank or other financial institution to issue currency or manage transactions . Transactions are recorded on a public ledger known as the blockchain , and the currency is secured and verified by a network of computers . Bitcoin can be used to make payments and transfer money anywhere in the world , and it is often used as an investment or a store of value . How Bitcoin Works ? Bitcoin is a digital currency that is created and held electronically . It is not controlled by any government or bank . Bitcoins are created through a process known as mining , which involves solving complex mathematical equations that are designed to both verify and se...
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