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(1) for user-supplied collections based on large projects, one DOI will be issued per collection when it is ingested into the archive. This DOI should be displayed prominently during archive searches, and on the page describing the large project data release, and users encouraged to cite the DOI in papers, along with any journal article describing the dataset. A new DOI will be issued if a new reduction of the bulk of the dataset is supplied, but not in the case of small updates.
(2) for VLASS, several DOIs will be issued based on product collections (Quick Look (per epoch), Single Epoch (per epoch), Cumulative). Again, these should be displayed prominently in archive searches and on the VLASS science website.