[[ https://www.wikidata.org/wiki/Property_talk:P5587| Property:P5587 ]]
See [[ https://www.wikidata.org/wiki/Wikidata:Property_proposal/Libris-URI | Wikidata:Property_proposal/Libris-URI ]]
> A new property is needed since the old identifier [[https://www.wikidata.org/wiki/Property_talk:P906|P906]] will still be useful as it is used by many third parties (and will be for some time). It could however get an constraint saying that items with that property should always also have this new property.
>
> Sadly there does not seem to be an easy way of looking up the new identifier based on the old one that does not involve downloading large datasets.
>
> The formatter URI for RDF resource ([[ https://www.wikidata.org/wiki/Property_talk:P1921 | P1921 ]]) should probably be https://libris.kb.se/$1 (the canonical URI), I haven't checked if it supports content negotiation but e.g. .ttl is reachable under https://libris.kb.se/tr574vdc33gk2cc/data.ttl. The domain in the proposal is likely too narrow as the library will use this identifier for DVDs, editions of works and possibly other concepts such as events