Radium is a Proof-of-Stake cryptocurrency that serves as the base blockchain for SmartChain Core which expands the utility of Radium far beyond that of a standard coin, with features such as identity-address linkage, proof-of-existence, file checksum verification and validation, and decentralized elections and voting. All of these features exist in a 100% distributed data-layer within the Radium blockchain.
NewYorkCoin is a clone of Dogecoin that was established in March 2014. The coin has gone through a revival after dormancy of development starting in January 2018. It is a retail focused cryptocurrency.