Stacks Tests Post-Quantum Signatures in sBTC Transfer

The significance here is architectural rather than operational: a live mainnet transfer signed with quantum-resistant cryptography shows the mechanism can function outside a lab, even though ordinary sBTC wallets and the Bitcoin backing the token remain unchanged. That gap is the real story — the demonstration is a proof of concept, not a network-wide upgrade. For holders and builders on Stacks, the practical exposure is unchanged for now. Worth watching is whether this one-off vault withdrawal becomes a repeatable path toward wider post-quantum signing, and how the Bitcoin backing question is eventually addressed.