CDS has released hips2fits, a new service generating FITS images cutouts from HiPS datasets.
You will find the hips2fits service documentation and test it on this page.
The service was presented at the October IVOA meeting (slides available here).
In addition, this Binder notebook demonstrates how to access the service from Python.
DOI workflow had been activated for A&A VizieR catalogues.
The DOI identifies the full VizieR catalogue including the data published by authors with all services provided by CDS to access the dataset.
The VizieR DOI is available for citation. The DOI is defined as a supplement to the refereed paper published in A&A which already include the article DOI.