ORCID provides a unique identifier for researchers, similar to how a DOI identifies a paper. It solves the problem of distinguishing between researchers with similar names and tracking publications across different name variations. You register once, get an ID, and can connect it to your publications, grants, and affiliations. Many journals and funders now require an ORCID when submitting manuscripts.

The identifier stays with you throughout your career, even if you change institutions or name. Your ORCID profile can be public, making it easy for others to find your work. It's free to register and use. For anyone publishing academic work, it's become a standard part of the research infrastructure.