You require the data to be part of the listing, and you share that data with the consumer. It thus becomes a statement that can be enforced as part of advertis

You require the data to be part of the listing, and you share that data with the consumer. It thus becomes a statement that can be enforced as part of advertising to a customer. Counterfeits would be one thing to go after. Lying to customers would be another. After a while 'dodgy factories' and/or sellers that lie more often than not would be able to be sorted out and removed from listings. More importantly factories and sellers could build actual solid reputations for telling the truth. Most importantly, it would make middle-level-marketing stuff much more obvious.