ORCID - Open Researcher & Contributer ID
"ORCID provides a persistent digital identifier that distinguishes you from every other researcher and, through integration in key research workflows such as manuscript and grant submission, supports automated linkages between you and your professional activities ensuring that your work is recognized."
Your name may appear in multiple variations across your publications due to different citation styles and publication requirements, leading to confusion - ORCID removes this confusion by tying all of your works to a single unique identifier.
An ORCID iD is a resolvable internet address with the structure https://orcid.org/0000-000x-xxxx-xxxx, and is visible to everyone, but has privacy settings that researchers may manage themselves. It gives you a findable professional identity that can connect to all of your other profiles.
The ORCID iD is the most common unique identifier for researchers and links to major professional entities:
Register for a free ORCID iD to claim all of your work and make it easier for others to find regardless of where it lives.
Many publishers require ORCID iDs from authors during the publication submission process. A partial list: