Syscoin is a fork of Bitcoin with some token platform support on top. We plan to integrate token support in a later version but to start we can integrate Syscoin itself which should be fairly easy since it leverages all of Bitcoin’s structure in a backward compliant way. There are no changes to the transaction structure or block structure but there are some consensus updates with token transfers, however I do not think its a problem for rosetta sdk afaik. I did an initial implementation here: https://github.com/syscoin/rosetta-syscoin
The unit and security checks pass. Is there anything else I need to do for integration?