Hello steemit friends wherever you are this time I will post a digital exchange

Bitcoin is an electronic money made in 2009 by Satoshi Nakamoto. The name is also associated with the open source software that he designed, and also uses a peer-to-peer network without centralized storage or a single administrator where the US Treasury calls the bitcoins of a decentralized currency. Unlike most common currencies, bitcoin does not depend on trusting major publishers. Bitcoin uses a database that is distributed and spreads to the nodes of a P2P network to a transaction journal, and uses cryptography to provide basic security functions, such as ensuring that bitcoins can only be spent by people owning them, and never be done more from one time.

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