Time New Bank (TNB) is an ERC-20 token that is currently undergoing a gradual swap to its own mainnet. This is the settlement token for transmitting assets based on value of time. At the time of writing, you can trade an Ethereum-based TNB token against USD on the Bitfinex exchange.
Qtum (QTUM) is an opensource blockchain platform launched by the Singapore-based team of developers in 2017. The project provides an opportunity to maintain the connection between the virtual machines and the blockchain. Also, Qtum users can create smart contracts and build DApps with the help of the platform. It is important to mention that Qtum is compatible with DApps built on other blockchains.
Comet (CMT) cryptocurrency is formally accounted on the number of ratings.. However, there is no up-to-date official information about its current status. Therefore, we can conclude that the coin is currently inactive.