Probably totally digress, but I wish IA can organize their digital library slightly better. One day I was checking some manga books by ISBN on IA just out of curiosity. And for some reason, it put the ISBNs for all the volumes of a manga into one single entry ( https://archive.org/details/isbn_1919979003907 , check "ISBN" metadata section) and unsurprisingly, the actual content is only one volume, vol.43 (not even vo…
A lot of the time the metadata accuracy is up to the original uploader. IA's upload system doesn't magically fill in all the metadata details for an item.
Wikidata has a property for Internet Archive ID, so it wouldn't be conceptually hard to construct a parallel metadata store there, but it would involve hundreds of millions of triples so it's definitely "hard" in other senses.