According to Adam Back, Taproot addresses in Bitcoin are composed of unhashed Schnorr public keys and can incorporate a tweak to reveal a tapleaf, which may contain SLH-DSA or other opcodes. Notably, the tapleaf tweak was engineered to provide post-quantum (PQ) security from the start, offering forward-looking protection against quantum threats. This design choice differentiates Taproot as a more secure and advanced alternative to traditional hashed public keys, making Taproot-based BTC addresses particularly significant for long-term crypto traders concerned about quantum resistance and network security (source: Adam Back, Twitter, June 3, 2025).