In T405707#11556140, @Marsupium wrote:

Artists of the World is still not available which is a pity for up to date information on artists.

In T312718#10235392, @Jahl_de_Vautban wrote:

I was made aware of this ticket at the last office hour per @Epidosis comment.

Some months ago I made the query https://w.wiki/9QXY to get all the deprecated statements sourced with a specific identifier (in this case, P7796) and the normal or prefered statement that could be used instead. It currently relies on the presence of a specifc P248 as well in the ref, but probably that could be scrapped. This query however has scaling issues (on P269 it doesn’t work without restricting the items considered).

I believe such query-based approach could be a good start, if only to get errors coming from a specific source, as well as suggestions of correction. They can be easily constructed from the property itself, so adding a link to the property talk page should be feasible.

It still need the involment of third parties to get errors corrected.

But maybe the API should provide a more specific error message in that case.

Hi Addshore,