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.
BHP(Blockchain of Hash Power)is a public chain which is the world's first decentralized digital asset interaction network based on bitcoin hash power credit. By using Bitcoin hash power as a broad agree digital asset value exchange intermediary, smart contracts are used in BHP network to realize the trusted and free interaction and circulation of digital assets and real world’s assets.