Simple taproot channels
Simple taproot channels are LND funding and commitment transactions that use taproot (P2TR) with support for MuSig2 scriptless multisignature signing when both parties are cooperating. This reduces transaction weight space and improves privacy when channels are closed cooperatively.
The initial experimental deployment of simple taproot channels in LND continues to exclusively use HTLCs, allowing payments starting in a taproot channel to continue to be forwarded through other LN nodes that don’t support taproot channels. Later upgrades of simple taproot channels, or alternative approaches, may begin supporting PTLCs.
Primary code and documentation
Optech newsletter and website mentions
2024
- Updated channel announcements that include support for simple taproot channels
- Discussion of channel upgrade methods, such as switching to simple taproot channels
- LND #8499 makes significant changes to the TLV types used for simple taproot channels
- LND #7733 updates its watchtower support for simple taproot channels
2023
- Zeus v0.8.0 released with support for simple taproot channels
- Specifications for taproot assets released based on LND’s experimental simple taproot channels
- LND #7904 adds experimental support for simple taproot channels
See also
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