Bitcoin is a decentralized digital currency that operates without the necessary to go to a principal authority or third party, like a bank. Introduced in 2009 via an unidentified individual or batch under the nom de plume Satoshi Nakamoto, Bitcoin is powered at hand blockchain technology, a public ledger that records all transactions securely and transparently. It is known for its narrow supply of 21 million coins and its say as a stockpile of value and mean of exchange. Bitcoin has enhance a in demand investment alternative and a crest of the evolving digital economy.