Colossuscoin is a decentralized, open-source peer-to-peer (P2P) Internet currency that enables fast instant payments to anyone in the world with almost no fees.
ARPA is a Secure Computation Network Compatible With Blockchains They propose a blockchain-based secure computation network of Multi-party Computation (MPC). ARPA cryptographically enables private smart contract, unprecedented data-at-use privacy protection, as well as scalable computational sharding.