Hi @Pacificoin, yes, agreed. There is no 100% secure solution. Just trying to find a more secure way.
@Princetane I respect fruitful opinion and discussion. I don't mind you don't like the idea. But describing a new idea as spam does not showing you are smarter. If my grammar error annoys you, I'm sorry. However, when I wrote those replies, I just focus on expressing what I am thinking. After all, I am not writing an academic paper right?
@jacrispies, it is not about age. It's more about how open you are to new technologies and new ideas. The slab way of coin certification is already very popular, but you still see people asking why they need to put their coin in a slab and pay someone else grade their coin. Then you know, if some day the NFT certified coin is implemented and become popular, you will still find people questioning why we pay much more premium to the same coin just because it has some digital data attached. Believe or not, if I proposed the idea in NFT or blockchain forum, the replies would be very different.