Provide way to sign or lock a project file

From the forums:

https://forum.world-machine.com/t/request-to-provide-some-way-to-digitally-sign-the-tmd-project-file-or-already-have-it/7950

"I publicly released some of my TMDs as sample files for others to learn from. But I have recently discovered that these projects are being packaged and sold for profit. It’s annoying that I can’t prove at all that these TMDs were made by me.

This may just be my personal issue, but I sincerely hope that WM has a way to provide encrypted signatures for project files. I envision a mechanism where users can add license encrypted signature information (similar to macros) to files, and each successor who uses/modifies the document can only add their own signature at the end of the creator list, and cannot change/delete existing signatures. At the same time, each project will generate a complete borrowing list, displaying the authors of the macros/blueprints referenced in the project."