Digital exhibitions have great potential as complementary research-related services and can serve as a sustainable publication format. To ensure that the digital exhibition meets the standards of a sustainable publication, several aspects had to be considered. In this article, we introduce a digital exhibition of Byzantine lead seals, gathered from different collections around the world, and discuss it with the DH Benelux community in terms of best practices in DH research (such as compliance with the FAIR principles) and its potential as a sustainable publication format.