Bitcoin 8333
Installing Bitcoin-QT Wallet Software
Bitcoin-QT is the software associated with the main Bitcoin project (other wallet programs are provided by private entities). This software does more than just being wallet. The Bitcoin blockchain is shared between other Bitcoin users via peer-to-peer software. The software also verifies transactions going through the Bitcoin network. If someone send invalid transactions or tries to spam the network it is up to the nodes to reject it and keep the network secure. This software is the backbone of the Bitcoin system.
