PPSR Core | A Data Standard for Public Participation in Scientific

"PPSR Core is a set of global, transdisciplinary data and metadata standards for use in  Public Participation in Scientific Research (Citizen Science) projects. These standards are united, supported, and underlined by a common framework illustrating how information is structured within the citizen science domain. This allows data to be used across platforms and projects in a consistent manner, furthering the research goals of the scientific community...."