Our vision is to create a global exchange using Ethereum blockchain, where everyone on this planet has the opportunity to buy and sell mobile bandwidth in any country just like you buy foreign currencies on FOREX.
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.