Authenticity is so much more than "I am using a non-public number to mathematically sign this data", that's the whole problem. It's the same as crypto people no

Authenticity is so much more than "I am using a non-public number to mathematically sign this data", that's the whole problem. It's the same as crypto people not understanding that pretty much zero theft/fraud/crime happens through a simple man in the middle attack, so building a terrible machine that can ONLY prevent that method is mediocre at anything else. Gram and Gramp are going to get their keys phished. An LLM screed signed by Gramps stolen key isn't authentic even though it 100% mathematically is. Authenticity is about the mindset and intentions of the creator.