Prochain next-gen decentralized digital advertising ecosystem. Prochain is to build a transparent digital advertising data ecosystem by connecting advertisers, media and developers, improving the efficiency of advertising business, reducing the advertising traffic fraud, to intermediaries, and using big data to reap the maximum benefits.
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.