I see. If there a reason for this? I can understand why you'd change the POW, but why change the address hash? There doesn't seem to be any benefit to doing that, other than to make it harder for people like me to implement wallets. I now have to fork every base58 library to replace sha256 with groestl512, which I've done here: https://github.com/priestc/Groestlbase58, except i can't find a good Groestl implementation in python, so Groestlcoin will unfortunately remain unimplemented in my project