Innovative Wallet Offers Solution to Mitigate Bitcoin's Quantum Computing Risks Without Network Upgrade

The developers of a new wallet claim to have developed a method to counter the risks associated with quantum computing using a smart contract layer that operates in conjunction with Bitcoin, eliminating the need for any modifications to the network itself. On Tuesday, Postquant Labs unveiled Quip Network's post-quantum bitcoin wallet, which operates on Arch Network, a system enabling developers to build smart contracts directly anchored to Bitcoin. Quip utilizes this infrastructure to implement a post-quantum signature scheme called WOTS+, which does not rely on elliptic curve mathematics that can be compromised by quantum computers. By utilizing a 'Layer 2' network, developers can add features without altering Bitcoin's base layer. According to Postquant Labs CEO Colton Dillion, 'The Bitcoin community has delayed addressing the quantum problem for years, despite it being discussed by Satoshi himself. While developers estimate a protocol upgrade could take 5 to 10 years, Quip's approach provides similar protection immediately.' The launch occurs amidst an ongoing debate regarding how Bitcoin should address quantum risk, with proposals from Jameson Lopp and Paul Sztorc sparking controversy within the community. Quip's approach eliminates the need for a soft fork, consensus change, or community vote, setting it apart from existing proposals. However, the approach has its technical trade-offs, with Lopp arguing that Layer 2 protection is insufficient due to the exposure of Bitcoin mainnet public keys when a user broadcasts a transaction. The wallet app is set to launch next week, and a third-party audit is currently underway. Postquant Labs CTO Dr. Richard Carback noted that the approach narrows the window for a quantum attack to as little as two blocks, approximately 20 minutes.