Wikidata:Property proposal/Erfgoedkaart ID

Description	Map and database of heritage organisations in Belgium
Represents	Erfgoedkaart (Q106516871)
Data type	External identifier
Domain	archive (Q166118), museum (Q33506), heritage library (Q2208411) and other items
Allowed values	\d+
Example 1	Royal Observatory of Belgium (Q1421339) → 8889 (https://erfgoedkaart.be/?id=8889)
Example 2	Museum Smidt van Gelder (Q2514595) → 7834 (https://erfgoedkaart.be/?id=7834)
Example 3	Bibliotheek Museum voor Schone Kunsten Gent (Q106556828) → 13083 (https://erfgoedkaart.be/?id=13083)
Planned use	Replace current modelling, e.g. Bibliotheek Museum voor Schone Kunsten Gent (Q106556828)described by source (P1343)Erfgoedkaart (Q106516871)reference URL (P854)https://erfgoedkaart.be/?id=13083 and Bibliotheek Museum voor Schone Kunsten Gent (Q106556828)described at URL (P973)https://erfgoedkaart.belanguage of work or name (P407)Dutch (Q7411) with the new property. May look into automation to do this.
Expected completeness	always incomplete (Q21873886)
Formatter URL	https://erfgoedkaart.be/?id=$1
Applicable "stated in"-value	Erfgoedkaart (Q106516871)
Distinct-values constraint	yes

This source has been linked to a lot of items (https://www.wikidata.org/wiki/Special:WhatLinksHere/Q106516871). It gets used as a reference, but also as a simple breadcrumb to an external database. But it has been modelled suboptimally so far. Since it is really an external ID, a dedicated property would be preferred. Azertus (talk) 11:02, 25 May 2021 (UTC)[reply]

Support --Epìdosis 16:45, 25 May 2021 (UTC)[reply]
Support I didn't model it as an external ID at first because it is basically just a query to an API and I cannot guarantee how stable/permanent this link will be. But if the community decides that an external ID is the better way to model it, I have of course nothing against it. Beireke1 (talk) 07:10, 26 May 2021 (UTC)[reply]
Support, an important property for Belgium.--Arbnos (talk) 14:05, 31 May 2021 (UTC)[reply]