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.
The main goal of Callisto is to research and develop a reference implementation of a self-sustaining, self-governed, self-funded blockchain ecosystem and development environment. Callisto aims to establish a secure and contribution-friendly environment for further protocol development and improvements. It will rely on a built-in system of smart-contracts to achieve this goal.