OpenDIS allows to search publicly the complete inventory of cores in the National Core Repository Berlin-Spandau online. Cores from research drillings of long-term drilling programs such as BGR, BMBF, GESEP and ICDP are listed. In addition to core metadata and the corresponding drilling process, high-resolution photos, drill reports and other documents are linked and can be freely downloaded. Furthermore, sampling and its analytical results are also made available to the public if there is no temporary moratorium on the respective core data. In this case, however, access to data can be granted on a case-by-case basis upon user request.