# Blockstream Highlights SHRINCS Draft BIP in Q3 Update By Simon Yoon Canonical URL: https://www.tokenpost.com/news/technology/52045 Published: 2026-11-09T03:32:10.000Z Updated: 2026-11-09T03:32:10.000Z Section: Technology > The update also included hardware-wallet testing as a separate post-quantum development. Blockstream’s Nov. 5 third-quarter update said the company had advanced SHRINCS, a hash-based signature scheme, to a draft Bitcoin Improvement Proposal. The step adds a proposal-stage development to the company's work on preparing Bitcoin (BTC) for future quantum-computer attacks. The update also included hardware-wallet testing as a separate post-quantum development. Blockstream's view on Falcon-1024 remained unchanged from its Aug. 26 research post, which identified it as the leading lattice-based candidate. TokenPost previously covered [Blockstream's Falcon-1024 assessment](). ## Links in this article - [Blockstream's Falcon-1024 assessment](https://www.tokenpost.com/news/technology/51899)