Groestlcoin Core connects to the Groestlcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built. Groestlcoin Core is the original Groestlcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Groestlcoin transactions (which is currently more than 2 GB); depending on the speed of your computer and network connection...