[docmarionum1]

Open-sourcing the code would only be the first step. To make the experiments truly reproducible, you also need to know the hardware and software configurations used to run it. Different package versions could lead to different results. And, for instance, if you're running your code on one of those old Pentium chips with an error in the FPU, that needs to be know.

I'm currently working on a platform for scientific programming. One of the ultimate goals is to include a provenance system which will be able to tell you everything about what generated the final results, including that of input data if it was derived on the system. That way you might be able to have a complete history of where a particular result comes from.