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.
Sense creates blockchain based smart contracts in chat and rewards humans for the contributions they make to one another conversationally, across Sensay and other messenger applications. Humans can monetize their proof of intelligence in the data used to train A.I. applications and agents. Sensay, the first application, creates a marketplace for peer to peer conversations.