The Blockstream team just released their 192 page paper on Lattice-based Signature Schemes (for Bitcoin).
It also includes an intro to Lattice-based cryptography.
eprint.iacr.org/2026/1628
eprint.iacr.org
Lattice-based Signature Schemes for Bitcoin
Lattice-based cryptography offers a promising direction for transitioning Bitcoin toward post-quantum security, serving as a secure replacement for currently deployed discrete logarithm signatures. Th...