Currently, ORCID is optional, not mandatory. However, it is important to note that many publishers (including Elsevier, Wiley, Nature, Thomson Reuters) now require all researchers associated with their publications to use an ORCID iD.
If an article is published without providing an ORCID iD, how can it be added?
ORCID stands for Open Researcher and Contributor ID. The ORCID iD is a unique and persistent academic identity for authors, distinguishing them from other researchers and recording all their research activities. To add an ORCID iD, authors need to log in to their account and make the association in the account information modification section

(0) Thank | 维尔娜菲茨杰拉德

ORCID is the abbreviation for Open Researcher and Contributor ID, and it is an open non-profit organization. The ORCID ID is a unique and persistent academic identity for contributors, which distinguishes authors from other researchers and records all of the authors' research activities.

Researcher can register for ORCID ID for free at https://orcid.org/signin by filling in their name, email address, and setting a password

(0) Thank | 维尔娜菲茨杰拉德

Do we have to provide the ORCID ID of each author when submitting a manuscript?

(0) Thank | 上清雨真

What is ORCID ID? How to register?

(0) Thank | 上清雨真

Just passable, it's fine as long as I can graduate. My senior brother published a paper last year, which can also be considered a successful graduation. Let's just hope for the best

(0) Thank | 凌霄高洁