It makes sense in the fact that the blockchain can be used to store a proof of copyright that may help in settling disputes when two parties claim to be the origin of the thing being copyrighted.

So, you could imagine storing in the blockchain proof that your wrote some code. If someone comes along and pretend it's theirs, you have irremediable proof that it's not.

You could build a whole framework of copyright registration around this. Say you could register the hash or fingerprint of pictures you took, so nobody could claim that they were theirs.

Of course, this doesn't solve the issue of enforcement but it gives a way for the owner to prove ownership, making it arguably easier to settle conflict.

A blockchain can't prove that you created anything. It can only prove that you have possession of the same private key as a person who had knowledge of some information at a certain time in the past. Having knowledge of something isn't the same thing as creating it, and furthermore possession of a private key isn't proof that you are the sole or original owner of that key. So, I fail to see how a blockchain could prove ownership of any copyright. Furthermore, proof of ownership is rarely the main issue in copyright disputes, so even if a blockchain did work to prove ownership of copyrights it wouldn't even be useful.