ORCID provides researchers with a unique persistent digital identifier, allowing disambiguation from other authors with the same or similar names. Individual researchers can sign up to ORCID for free, and can retrospectively associate their ORCIDs with past publications. ORCIDs are also now becoming more commonly used when submitting grant applications.
Sample ORCID identifier: 0000-0002-0534-2435
Currently researchers can complete a profile and list or match themselves with their papers via the CrossRef system. It is possible to link the ORCID identifier with other identifiers including those generated by SCOPUS, ResearcherID and LinkedIn.