ORCID provides a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. ORCID identifiers – also known as ORCID iDs – are persistent unique identifiers that follow individuals throughout their careers. The format of an ORCID iD looks something like "0000-0003-0423-208X". You can easily and uniquely attach your ORCID iD to your scholarly works, such as articles, citations, grants, patents, and data sets.