Not quite. A few options exist to generate a seed and addresses to receive SiaPrimecoin offline. To send from these addresses, you’ll need to enter the seed on a SiaPrime client that is online and has downloaded the full SiaPrime blockchain.Cold storage wallet is a tool for creating offline receiving addresses. It’s not an “official” SiaPrime tool, but it’s written by one of the Sia developers. For pre-built Windows, Mac, and Linux packages, see the releases tab on the Github repo.