Why can’t academics insert some sort of cryptographic proof of ownership or publication date? The ownership could be done with something like Keybase, and as fa

Why can’t academics insert some sort of cryptographic proof of ownership or publication date? The ownership could be done with something like Keybase, and as far as dates, that could be as simple as private Git repo that you make public or some fancy blockchain solution. But I suppose even then, people could look the other way.