dfmi_ts_abundance/.../*.xml - These have lid_references to LID urn:nasa:pds:context:instrument:rosina.ro which has been deprecated in favor of LID urn:esa:psa:context:instrument:ro.rosina >>> Must fix: please replace urn:nasa:pds:context:instrument:rosina.ro with urn:esa:psa:context:instrument:ro.rosina dfmi_ts_abundance/collection.xml pharo-pluto/collection.xml - Because SBN/UMD's collections are like other nodes' bundles, per https://pds.nasa.gov/datastandards/documents/policy/PolicyOnDOI10142020.pdf, collection.xml should have Citation_Information/doi, which for now can be obtained via https://pds-engineering.jpl.nasa.gov/content/doi >>> Must fix: Please ensure that two bundles exist with LIDs urn:nasa:pds:ro-rosina urn:nasa:pds:gbo-palomar and the first has urn:nasa:pds:ro-rosina:dfmi_ts_abundance::1.0 Primary bundle_has_data_collection while the latter has urn:nasa:pds:gbo-palomar:pharo-pluto::1.0 Primary bundle_has_data_collection * - EN (and the DPH) recommends that the Root Tag include: xmlns:pds="http://pds.nasa.gov/pds4/pds/v1" This has been debated, and there is no consequence for ignoring.