Building a Post Quantum Payment Network
Building a Post Quantum Bitcoin
How do we make a new digital payment network secure against quantum computers? We’ll explore existing approaches to post-quantum signatures, zero-knowledge proofs, key migration, and the trade-offs they introduce for scalability and usability. We’ll then look at Quantus as a case study in building a blockchain around post-quantum cryptography from the ground up, including ML-DSA signatures and post-quantum ZK proofs. (Quantus).
A key technical challenge is the size of post-quantum signatures. Quantus addresses this through Wormhole Addresses, which use recursive Plonky2/STARK-based zero-knowledge proofs to aggregate transactions and verify them efficiently onchain. This architecture also provides private transactions without relying on quantum-vulnerable elliptic-curve pairings.
Paper / source: [DESCRIPTION COMING SOON]
Format
Short introduction and context setting to start.
A short walkthrough of the paper and its key ideas.
Questions and discussion grounded in the original source.
Moderator-led discussion with no promotions.
Thank you Quantus for hosting us:
Quantus is a Proof-of-Work blockchain designed from the ground up for post-quantum security. Built on Substrate, it replaces elliptic-curve signatures with NIST-standardized ML-DSA, uses ML-KEM for quantum-resistant P2P encryption, and Poseidon2 as its ZK-friendly PoW hash function.
Session Guides:
Jay....
About Whitepaper Reading Club
We are a community of founders, researchers, and builders across Singapore, Malaysia, San Francisco, Bangkok, New York, Lagos, Taipei, and Hong Kong. We meet in person every month to read, discuss, and pressure-test the latest blockchain papers, protocols, and technical ideas.
Learn more: Website · Summaries · Calendar
We create detailed, easy-to-understand summaries for each paper and have held 80+ sessions since June 2023, covering Account Abstraction, Parallel Chains, EIPs, the Bitcoin ecosystem, and AI x Crypto. We are ecosystem-agnostic, not for profit, and focused on projects with technical, product, or social innovation.