Record number 100,000 was this one: http://www.dart-europe.eu/full.php?id=154764, a thesis from Cologne. At the last Board meeting, a small token was promised to the provider of the 100,000th record.
DART-Europe is a partnership of research libraries and library consortia who are working together to improve global access to European research theses. DART-Europe is endorsed by LIBER (Association of European Research Libraries) as part of the work of the LIBER Access Division, and it is now the European Working Group of the Networked Digital Library of Theses and Dissertations (NDLTD).
The DART-Europe partners help to provide researchers with a single European Portal for the discovery of Electronic Theses and Dissertations (ETDs), and they participate in advocacy to influence future European e-theses developments. DART-Europe offers partners a European networking forum on ETD issues, and may provide the opportunity to submit collaborative funding applications to achieve DART-Europe’s vision for ETDs.