Does bitcoin have a quantum-resistant signature scheme?
Could you please elaborate on whether Bitcoin incorporates a quantum-resistant signature scheme? I'm curious to know if its security measures are prepared for potential quantum computing threats. Given the rapid advancements in quantum technology, it's crucial to understand if Bitcoin's cryptographic foundations are resilient against such future challenges. Could you also explain what quantum-resistant signatures are and why they're important in the context of cryptocurrency security? Thank you for your insights.