EurekaCoin (ERK) is the native coin of its own PoS blockchain, the Eureka Network (eurekanetwork.io) and we have many projects preparing to build upon it using ERK20 and ERK22 tokens. The EurekaNetwork blockchain will not only be Proof of Stake itself (meaning EurekaCoin in itself can be used to earn passively) but other tokens/ sidechain coins will be able to be proof of stake in themselves securing their own network.