Bitcoin is a new digital currency that enables reliable, instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin is also the name of the open source software which enables the use of this currency.
Bitcoin is ...
Bitcoin verifies transactions with the same state-of-the-art encryption that is used in military and government applications.
Bitcoin is free open-source software. Nobody owns it; the most popular client is maintained by a community of developers and other good clients are available. Furthermore, the network is run by a decentralized network of thousands of servers and desktops.
Using the Bitcoin network is free, except for a voluntary fee you can use to speed up transaction processing.
Download mobile software: Blockchain.info best crypto wallet app
Download desktop/server software: Bitcoin-Qt / bitcoind Multibit Electrum Armory