Persistent identifiers enable resource providers (e.g. journals, storage, …) to clearly identify individuals or to cite data records in the research community. The most important identifiers are DOI and ORCID.

A Digital Object Identifier (DOI) is a unique alphanumeric character string, with which content can be uniquely identified and a permanent link to its location in the Internet can be provided.

ORCID (Open Researcher and Contributor Identifier) provides an identifier that authors can use with their name when they carry out research, grant and innovation activities. You can find more information about this identifier here: orcid.org/aboutorcid.org/about.