Jonas Nick(@n1ckler):Last week at @OPNEXT2026 I presented a toy proposal for hash-based sigs in Bitcoin (incl. SHRINCS). Open questions: • What are acceptable sign/verify costs? Higher → smaller sigs • How to design safe stateful setups? • Optimizations beyond SHRINCS? • L2s and stateful sigs?

Jonas Nick

@n1ckler

Bitcoin research @Blockstream. @nixbitcoinorg maintainer. Former bitcoin/secp256k1, @donnerlab1 contributor 36C7 1A37 C9D9 88BD E825 08D9 B1A7 0E4F 8DCD 0366

Joined April 2013

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Jonas Nick@n1ckler

2026.04.24 12:39

Last week at @OPNEXT2026 I presented a toy proposal for hash-based sigs in Bitcoin (incl. SHRINCS). Open questions: • What are acceptable sign/verify costs? Higher → smaller sigs • How to design safe stateful setups? • Optimizations beyond SHRINCS? • L2s and stateful sigs?