Sorry for the confusion. I meant reproducibility in the sense that I can have a git repo to share code between a laptop running windows and a cluster running Linux, and if I run the program on both I'll be running the same program (same libraries, same versions, equivalent binary blobs, etc). I don't mean that it can give you a cryptographic proof that your code hasn't been tampered with maliciously, just that you can debug your code locally, then deploy it to whatever you want and be pretty sure that it will still work even if you deploy to a different OS an/or cpu architecture.