Fundamental to the due process of law is notice—a requirement that all parties are made aware that a lawsuit could alter their legal rights or duties.  Most defendants will be served in person by a process server.  But when the defendant is unreachable this way, some creativity may be required, especially when the defendants are only traceable through their actions on the blockchain, an instrument famous in part for its ability to keep its users private.  After a hack of almost $8,000,000 of its funds, Liechtenstein-based cryptocurrency exchange LCX AG allegedly traced some of its stolen digital assets to different digital wallets.  LCX AG was able to freeze the funds, but with no name stitched into the digital wallet, it still lacked a name and place to pursue legal action.  At least, it lacked a physical place.  But if LCX AG knew the location of the wallet, then perhaps it could serve the virtual place.