Buy QRL by Nov 20, 2026.

For those unfamiliar with it, [ECDSA.fail](http://ECDSA.fail) is a research challenge focused on optimizing quantum circuits for solving the elliptic-curve discrete logarithm problem (ECDLP) underlying ECDSA, the signature scheme used by Bitcoin, Ethereum and much of today's crypto ecosystem. The researchers are exploring how efficiently this could potentially be done on a future fault-tolerant quantum computer and competing to reduce the resources required compared with previous circuit designs. Interesting development on ECDSA.fail. Progress seemed to stall for a while, and researchers …