This is very interesting! I am wondering how exactly ZeroMQ is implemented in Sneak. You don't see many coins using a DAG nowadays unless it's a simple rehash. There's a lot of potential in using ZeroMQ. If you had the underlying structures involved you could develop a way for any and all communications made between applications so that they take advantage of ZeroMQ to ensure the privacy of those communications. I wonder what that would mean for a smart contract like system.