Crossmark (https://www.crossref.org/services/crossmark) provides cross-platform methods for readers to quickly discover the status of research output along with additional metadata related to the editorial process. Crossmark lets readers know when a substantial change affecting a citation or interpretation has occurred and that the authors have updated the metadata record to reflect the new status. Crossmark is applied to the webpage providing the paper on the journal’s homepage for all papers published in Journal of Korean Society of Water and Wastewater. Readers can view additional information, including the history of published papers, by clicking the Crossmark button.