The Quantum Resistant Ledger (QRL) project aims to achieve full post-quantum security using PQ-CRYPTO recommended cryptography. It launched the world's first fully post-quantum secure blockchain ledger project with the QRL Mainnet in June 2018. Instead of ECDSA, the QRL utilizes a hash-based one-time extended Merkle tree signature scheme (XMSS). The project roadmap includes transitioning from proof-of-work block selection to proof-of-stake with a signed iterative hash chain reveal scheme. Transactions in the QRL have larger sizes (2.8kb per tx, binary) due to hash-based signatures, longer keypair generation times, and the need to record the state of transactions. However, a single address can be used for signing numerous transactions. The QRL provides a post-quantum secure cryptocurrency, and its ecosystem allows for the easy development of blockchain applications on a provably quantum resistant foundation.