Cube (CUBEAUTO) is the ERC-20 token of the AI network security company utilizing blockchain technology. The token is currently listed with few exchanges.
Bitcore (BTX) cryptocurrency is based on its own blockchain and was established as a hybrid fork of BTC in 2017 through creating a new empty blockchain. Bitcore is represented on a few exchanges (mainly against BTC) and wallets. You can mine this coin.
As of now, Quantum Resistant Ledger (QRL) coin is represented on a few exchanges paired against BTC. Originally being an ERC-20 token, it switched to its own mainnet in 2018. The QRL claims to be the first decentralized cryptocurrency, that is resistant to both classical and quantum computing attacks.