Estamos no Keepers Registry 

Keepers Registry "Are the archiving agencies which act as long-term stewards of the digital content issued as continuing resources including e-serials" (...) "As of December 2019, the ISSN International Centre is the sole operator of the Keepers Registry. This service aggregates preservation metadata and ISSN descriptive metadata to report the archival status of digital journals. The Keepers Registry is now fully integrated with the ISSN Portal. The latter provides a complete and accurate overview of a serial title’s journey from initial publication to transfer of responsibility and to long-term preservation by archiving agencies. The ISSN Portal is indeed the authoritative database for serial title identification and tracking.