Bitcoin is a decentralized digital currency that operates without the demand to go to a key authority or broker, like a bank. Introduced in 2009 via an unknown mortal or congregation answerable to the alias Satoshi Nakamoto, Bitcoin is powered by blockchain technology, a segment ledger that records all transactions securely and transparently. It is known for its limited accommodate of 21 million coins and its use as a trust in of value and medium of exchange. Bitcoin has grace a well-received investment choice and a badge of the evolving digital economy.