QRL is the leading project in post-quantum cryptography, helping to strengthen the encryption so quantum computers simply cannot crack them, no matter the computational power. The QRL blockchain is secure by design, using a NIST-approved (The U.S. National Institute of Standards and Technology) post-quantum digital signature scheme. The algorithm is a hash-based, forward-secure signature scheme with minimal security assumptions and reusable addresses - removing the attack vector of unhashed public keys that the cryptocurrency industry faces today.