The TIB – Leibniz Information Centre for Science and Technology and University Library has become the 18^th institution worldwide and the second in Germany to cooperate with the ISSN International Centre. In future, all e-journals held by the TIB will be listed in the Keepers Registry.

The TIB’s digital holdings of e-journals currently include approximately 2,500 journal titles, including Wiley e-journals under the DEAL-Wiley agreement and Ukrainian Open Access journals, which are harvested by the TIB.

Journals can be searched on this platform by their ISSN, their unique persistent identifier. This identifier enables libraries, repositories and archives to find out whether a particular issue of a journal has already been archived and who the ”keeper” of the journal is. In addition to the TIB, the ”keepers” are the e-journal archiving services Portico, CLOCKSS and global LOCKSS, as well as institutions such as the Library of Congress, the National Library of France, the National Library of the Netherlands, the National Digital Preservation Program China and the ZBW – Leibniz Information Centre for Economics.

The TIB has been using the Keepers Registry for many years to compare the archival status of different e-journals and to make informed decisions about which journals in the TIB collection should be prioritised for digital preservation.

The Réseau National des Bibliothèques de Mathématiques (RNBM), France, is organizing the Journées de la Documentation Mathématique (Mathematical Documentation Days) from November 20 to 24, 2023, on the theme of preservation and persistent access to documentation for mathematical research. The presentation of Keepers Registry and the Submit.Retrieve.Reuse service is scheduled on November 21 at 16.00 CET. Presentations by ZBW – Leibniz Information Center for Economics and LOCKSS/CLOCKSS, two archiving agencies partnering with Keepers Registry, will follow. The full program is available here: https://www.cirm-math.fr/Schedule/screen_display.php?id_renc=2869.