Preston is an open-source software system that keeps track of biodiversity datasets. Scientists can use Preston to keep a local, uniquely identifiable, versioned copy of all or parts of GBIF-indexed datasets. Institutions can use Preston to check that their collections are indexed and available through iDigBio. Biodiversity informatics researchers can use Preston to perform metadata analysis. And finally, archivists can distribute archives across the world.
For more information see the Preston project.