Aggarwal, Divesh, Gavin Brennen, Troy Lee, Miklos Santha, and Marco Tomamichel. “Quantum Attacks on Bitcoin, and How to Protect Against Them”. Ledger 3 (October 17, 2018). Accessed March 28, 2024. https://www.ledgerjournal.org/ojs/ledger/article/view/127.