Proposal ObjectProposal IDData product typeData product sub-typeCalibration levelTargetProposalObservation configurationCuration metadataPublisher specified dataset IDPublisher version of the datasetDate curated dataset last modified time.releaseLevel of access grantedPublisherURI for VO PublisherEntity associated with Publisher role.Contact entity for curation serviceEntity associated with Contact role.Reference to publication associated with the datasetURL or Bibcode of the publicationDataset identification metadataDataset TitleIVOA Dataset IdentifierCreator defined Dataset IdentifierDataset version assigned by creatorData processing/creation dateDataset creation typeInstitution or entity which created the datasetIndividual associated with the Creator role.ContributorAcknowledgment expression for the contributorIndividual associated with Contributor role.Collection to which the dataset is a memberCollection nameDerived metadataproperty derived from analysis of data contentTotal exposure time, with all known correctionsvalue of derived property