Bitcoin is a decentralized digital currency that operates without the need to go to a principal expert or broker, like a bank. Introduced in 2009 by an unrevealed mortal or society answerable to the nom de plume Satoshi Nakamoto, Bitcoin is powered by blockchain technology, a overt ledger that records all transactions securely and transparently. It is known an eye to its reduced supply of 21 million coins and its use as a collect of value and medium of exchange. Bitcoin has ripen into a popular investment option and a badge of the evolving digital economy.