Bitcoin is a decentralized digital currency that operates without the penury after a chief expert or arbitrator, like a bank. Introduced in 2009 via an unidentified mortal or group under the pseudonym Satoshi Nakamoto, Bitcoin is powered away blockchain technology, a unshrouded ledger that records all transactions securely and transparently. It is known for its narrow supply of 21 million coins and its consume as a stockpile of value and usual of exchange. Bitcoin has grace a popular investment alternative and a crest of the evolving digital economy.