Ecobit is a Green Blockchain Project with the goal of saving climate change. Ecobit is built on top of the NEM (New Economic Movement) cryptocurrency platform.
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.