Template:MainPage FAQ

From Bitcoin Wiki
Revision as of 23:28, 2 March 2011 by Rgm (talk | contribs) (link to Network article)
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Q. What is Bitcoin?

A. Bitcoin is a peer-to-peer currency. Peer-to-peer means that no central authority issues new money or tracks transactions. These tasks are managed collectively by the network.

Q. How does Bitcoin work?

A. Bitcoin utilises public-key cryptography. A coin contains the owner's public key. When a coin is transferred from user A to user B, A adds B’s public key to the coin, and the coin is signed using A's private key. B now owns the coin and can transfer it further. A is prevented from transferring the already spent coin to other users because a public list of all previous transactions is collectively maintained by the network. Before each transaction the coin’s validity will be checked.