Novacoin is a hybrid Proof of work (POW) / Proof of stake (POS) decentralized peer-to-peer cryptocurrency.The Proof of Work part of Novacoin is based on the Scrypt hashing algorithm. Proof of Stake contributes to the coins energy efficiency, as there is no need for nodes to contribute mining power to part of the money creation process. As of now, Novacoin is set to be capped at 2 billion coins. However Novacoin stated that the cap limit may be lifted if the situation requires it. It looks very much like a variation of Sunny King Peercoin.
'DigitalNote describes itself as a decentralized Proof-of-Work(bmw512)/Proof-of-Stake(echo512) hybrid blockchain with fast, untraceable transactions and encrypted messaging features. The network is reportedly resistant to 51% attacks via its VRX v3.0 technology and it is mobile-ready with lightweight wallet functionality. A masternode network reportedly enhances untraceability and provides incentive for users to secure the network, whilst enabling fast private transactions and P2P messaging that are difficult to trace or censor. Miners and stakers are encouraged to participate via network fee payouts, facilitating consistent block generation and a fast network. DigitalNote was originally released as ''duckNote'' by an anonymous individual or group of individuals under the pseudonym ''dNote'' in 2014. Over the years more advancements were added to the protocol, with each major upgrade rebranding the name of the protocol (first ''DarkNote'' and then ultimately ''DigitalNote''). Much like Bitcoin's ''Satoshi Nakamoto'', the original founder(s) vanished in 2017, leaving the open source code to be updated by a community team who have since continued development.'