LikeCoin is a protocol for content attribution, monetization and distribution. LikeCoin chain is a Bonded Proof of Stake blockchain developed on top of Cosmos SDK. As a permissionless protocol, 800+ media chose to adopt LikeCoin with her WordPress plugin. LikeCoin also provides an easy-to-use mobile app, Liker Land, for layman users to read content, reward creators, transfer LikeCoin and delegate to validators.
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.