Copyrights don't do shit for controlling sources and trust on Internet. You are mistakening things. Copyright is a framework of laws to enforce rarity and property on immaterial things. Patent is another way to it much more reasonably. Trademark is a third way. None of those is worth anything.
Imposing rarity and property on things that can be copied and transfered freely is a cancer for mankind.
Now there is what in France is called paternity of a work. Unfortunately it's tied to copyrights in the law, but it's still its own thing. I don't care much for it. It didn't existed for ages and it didn't prevented mankind from creating all kind of stuff.
While I understand where you're coming from and the hope you may have in copyright, we don't agree. I firmly believe copyrights are a cancer, an aberration that can only worsen things, especially in the age of Internet.
The paternity right (that's how what's you referring to in your last sentence is called in France) may not be completely harmful, but history proves it's useless imo.