Hey all, this is Semiel from the Ethereum forums. I'm going to take a crack at the Powerball contract this afternoon. Can anyone point me to documentation about how XCP's smart contract implementation differs from Ethereum's? I know how to do it with Ether and the Ethereum blockchain, but I don't know what I need to do to make it work with XCP and the Bitcoin blockchain.
Welcome. Hopefully the following will point you in the right direction.
Since there appears to be little difference in how this works between Ethereum and Counterparty I'm sure if you get it working for Ethereum and pass it to one of the Counterparty Dev's to review you'll get the bounty.