input: add taproot chan scripts, control block logic, and spending routines (funding, taproot)

Mar 16, 2023

https://github.com/lightningnetwork/lnd/pull/7333

Host: yyforyongyu  -  PR author: roasbeef

Notes

• Familiarize yourself with:
  • Musig2
  • Tapscript
  • Simple Taproot Channels, especially the newly introduced Transaction scripts.
• This Taproot workshop is my recommendation.

Questions

• Did you review the PR and, what’s your overall verdict? (ACK, NACK, concept ACK, unknown)
• Which should go first, write the specs or write the code? And why?
• What are the benefits of Simple Taproot Channels?
• What is an anchor output and what is it used for?
• What is the issue of the current design of anchor output script in the PR?
• Can you think a different design for the anchor output?