The Stalwart UNSAT certificate specification Copyright (c) Stalwart Technologies Ltd This specification is licensed under the Creative Commons Attribution 4.0 International licence (CC BY 4.0). You may copy and redistribute it in any medium or format, and remix, transform and build upon it, for any purpose, including commercially, provided you give appropriate credit, provide a link to the licence, and indicate if changes were made. The licence's legal code: https://creativecommons.org/licenses/by/4.0/legalcode The licence covers the specification only. It grants no right in the solver, the certificates it writes, or any other Stalwart software.