Missing Datatype for Publication Dates in RDF Dumps of Meta Versions 1-5

[arcangelo7]

There is an issue with the RDF dumps of Meta, specifically in versions 1 through 5 (latest affected version: Version 5 available at https://doi.org/10.6084/m9.figshare.21747536.v5). The problem lies with the publication dates of entities of type https://doi.org/10.6084/m9.figshare.21747536.v5, i.e., bibliographic resources. It seems that, due to an unknown bug, these dates sometimes lack the proper datatype assignment.

Notably, when examining the same data within the triplestore, the publication dates correctly possess their datatype. This discrepancy suggests that the issue arises during the generation or export of the RDF dumps. The predicate for these dates is http://prismstandard.org/namespaces/basic/2.0/publicationDate.