Callisto's core is based on Ethereum, but its a mainnet project now, offering security audits for smart contracts. The project has a very unique usecase and a good number of holders too. $CLO latest transcactions are from mining operations, though it can also be used to make quick transactions, thanks to its 13.5 average blocktime.
Also you can mine $CLO, or Cold stake (Use of smart contacts to reward users after 27 days) on popular wallets like Coinomi, Magnum, Guarda or Trust wallet (at the…