👉 Bitcoin Optech #155

  • Proposed PSBT extensions for taproot
  • Proposed Key derivation path for single-sig P2TR
  • includes second post in the series about preparing for taproot: Advantages to using P2TR outputs for single-sigs:

the overall security of the Bitcoin system depends on a significant percentage of Bitcoin users verifying every confirmed transaction with their own nodes. That includes verifying the transactions your wallet creates. Taproot’s schnorr signatures can be efficiently batch verified, reducing by about 1/2 the number of CPU cycles nodes need to expend when verifying signatures during the process of catching up on previous blocks.

  • Selected Q&A from Bitcoin Stack Exchange
  • Notable code and documentation changes