This document discusses Crossmark, a solution for consistently showing updates to scholarly articles. Crossmark embeds a button in HTML and PDF versions of articles that displays additional publication information chosen by the publisher, such as funding data, ORCIDs, and license information. This allows readers to easily access updates and trust that they have the most current information, even when viewing articles away from the publisher site. Nearly 500 publishers are using Crossmark to flag updates for over 5 million articles.