ORCID is an open researcher identifier (Researcher and Contributor ID), and is a non-profit organization. The ORCID ID is a unique and persistent academic identity for contributors, which distinguishes authors from other researchers and records all related research activities of the author

(0) 讚！ | 维尔娜菲茨杰拉德

Currently, ORCID is optional, not mandatory. It is important to note that most publishers (including Elsevier, Wiley, Nature, Thomsen 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 of their relevant research activities. Authors need to log into their individual accounts and link the ORCID iD in the account information settings

(0) 讚！ | 维尔娜菲茨杰拉德

What is ORCID ID? How to register?

(0) 讚！ | 八坂篷蔚

Do authors have to provide ORCID IDs for each author when submitting a manuscript?

(0) 讚！ | 破戒阳平

For a couple of years the impact factor has been on the rise. In general, this is a good journal that is worth submitting to. The editors and reviewers provide detailed and pertinent comments.

(0) 讚！ | Gabriel

Over the past few years, the impact factor has been steadily increasing, making it a very good journal. The reviewers provided very detailed revision comments, unlike some reviewers who conduct reviews haphazardly

(0) 讚！ | 惠泽小可爱