What is HashNET? HashNET is a scalable, fast, secure, and fair decentralized- beyond blockchain project, leveraging Distributed Ledger Technology (DLT) and consensus algorithm which keeps all positive characteristics of a blockchain technology while increasing throughput to more than 200,000 transactions per second. Network is using Proof-of-Stake with masternodes, which eliminates the need for a massive energy consumption.
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.