LM-OTS
The one-time signature scheme underlying Leighton-Micali Signatures, specified in RFC 8554. NIST SP 800-208 approves the full LMS construction built on it. Each key signs once.
- Quantum status
- Believed quantum-resistant
- Standard
- RFC 8554, final
- Family
- hash based one time
- Also known as
- Leighton-Micali one-time signatures, LMS
Rated chains using it
- Bitcoin Cash Mainnet, opt-in
Contract level. Quantumroot vaults verify LM-OTS inside Bitcoin Script. Statement or write-up
Sources
- RFC 8554: Leighton-Micali Hash-Based Signatures , IETF. Accessed 19 October 2026.
Published beside the Hardy Score and not an input to it. How each chain is scored is set out in the methodology.