Winding Tree is a blockchain-based decentralized open-source travel distribution platform. We make travel cheaper for the end user, while making it more profitable for suppliers.
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.