Sebastian Schepis, the Syscoin founder, built Syscoin 1.0 as a blockchain-based marketplace for buying and selling goods. In its third edition in 2018 it became a fully developed blockchain platform. In 2019, Syscoin 4.0 enables any ERC20 to integrate with its Bitcoin-compliant system to accomplish ultra speed and security.
A social network digital coin, the ReddCoin (RDD) had forked from Litecoin as far back as in 2014. It is currently listed by a few exchanges with the possibility to buy the coin for fiat currencies. The ReddCoin blockchain “uses personalized IDs for social media tipping”.
Cube (CUBEAUTO) is the ERC-20 token of the AI network security company utilizing blockchain technology. The token is currently listed with few exchanges.