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Unicity: Predicates and Atomic Swaps

arXiv CS Tuesday 02 June 2026, 04:00 UTC By Ahto Buldas, Dirk Draheim, Mike Gault, Risto Laanoja, Vladimir Rogojin, Ahto Truu 1 min read
Key Points

Announce Type: new Abstract: We generalize Unicity token ownership to programmable spending conditions called predicates, enabling smart-contract like functionality executed off-chain directly by relying parties rather than by consensus participants. We prove that the security properties of the Unicity execution layer are preserved under reduction to predicate family unforgeability. To demonstrate the utility of the model, we show how to implement trustless atomic swaps by using predicates.

arXiv:2606.02192v1 Announce Type: new Abstract: We generalize Unicity token ownership to programmable spending conditions called predicates, enabling smart-contract like functionality executed off-chain directly by relying parties rather than by consensus participants. We prove that the security properties of the Unicity execution layer are preserved under reduction to predicate family unforgeability. To demonstrate the utility of the model, we show how to implement trustless atomic swaps by using predicates.
Unicity (ORG)
Originally published by arXiv CS Read original →

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