Leverj decentralizes the most desirable features of derivatives trading by implementing them in cryptocurrencies and eliminating points of friction. With a tight focus on derivatives trading and the supporting ecosystem, Leverj has taken the approach of defining the product first. We have built a functioning exchange with a usable UI (user interface), decentralized identity, and provable audit. We plan to decentralize the back-end and add ecosystem features that will enable large players to move into the cryptocurrency world.
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.