Each ORCID ID is a 16 digit identification number.
Adding works to ORCID is simple. This is the manual entry form. You'll need to select a work category and type, provide the title and publication information, citation, and identifier information. Work categories are publication, conference, intellectual property, and other.
You can add works to your ORCiD profile through:
To the left you can see the form to add works manually. If you're an established scholar adding via search & link may be the quickest option. You can search and link from ten other tools, including Scopus and CrossRef.