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Researcher identifiers help readers find journal articles, books, and a specific author's work. They usually include numbers. These identifiers are separate from platforms, such as academia.edu for example. Using your ORCID iD on publications provides a seamless way for readers to find you confirm what your work is. Many publishers are starting to encourage authors to include personal research identifiers when they submit their work. Other examples of research identifiers include:
DOI: a digital object identifier allows users to find specific articles
ISBN: international standard book numbers identifies specific books
ISSN: an international standard serial number allows users to find specific periodicals or magazines
Before ORCID was created, some database vendors attempted to identify scholars' specific work and distinguish them from other authors with similar names. These services are now compatible with ORCID but they are useful to know about, especially if you publish in the sciences.
ResearcherID-- you probably have a ResearcherID if many of your publications are indexed in Web of Science. You have to self-register for this ID. ResearcherID is compliant with ORCID and transferring information between the two profiles is simple. Read more about ResearcherID.
Web of Science has created detailed instructions on how to integrate ResearcherID and ORCID.
Scopus Author ID-- you don't need to create a Scopus Author ID. If you have at least one article indexed in Scopus, they will assign you an ID. View step-by-step slides on integrating Scopus and ORCID.
There are several other organizations that ORCID has integrated with. This enables users to simplify their citation tracking.