A FAIR File Format for Mathematical Software

We describe a JSON based file format for storing and sharing results in computer algebra without losing accuracy. Guided by practical usability, some key features are the flexibility to handle data structures unknown at the time of design, a clear method for transitioning to the latest format and a way of separating data of distinct or even contradicting semantics. This is implemented in the computer algebra system OSCAR  [5, 20], but we also indicate how it can be used in a different context.