Data, information, doesn't rot, but code does because it relies on the implicit promises of the underlying system(s) it runs on top of, the systems it interacts with, and the expectations of it's users.

Information on the other hand usually only gets more useful with time with very minimal relative-cost to maintaining code even though they're both digital.

And, like we're seeing, a lot of the "usefulness" of the information over time is new methods and tools for understanding that information.