Dryad is an international online repository for data contained in academic papers and other publications in the sciences. The National Evolutionary Synthesis Center and the University of North Carolina Metadata Research Center, in partnership with various journals and societies, comprise the development of Dryad's data set, all of which is waived under the CC0 public domain waiver.
According to the Dryad Fact Sheet, the main goals of Dryad are:
- "To preserve all the underlying data reported in a paper at the time of publication, when there is the greatest incentive and the ability for authors to share their data. This is particularly important in the case of data for which a specialized repository does not exist."
- "To lower the burden of data sharing by providing one-stop data-deposition via handshaking with specialized repositories."
- "To assign globally unique identifiers to datasets, thus enabling data citations."
- "To allow end-users to perform sophisticated searches over data (not only by publication, but also by taxon, geography, geological age, biological concept, etc)."
- "To allow journals and societies to pool their resources for one shared repository."
- "To enable bidirectional search and retrieval with data repositories from related disciplines."
All data deposited in Dryad is released via the CC0 public domain waiver.
However, scientific norms around citing data prevail.