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.
Quantum Resistant Ledger uses a different to Bitcoin cryptography system called XMSS. There are web, mobile (iOS and Android) and desktop wallets developed by the Quantum Resistant Ledger’s team. As we can assume based on the name of the currency, the founder of the Quantum Resistant Ledger company focused on how to make crypto resistant to attacks of quantum computers.
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