Author’s Original/Preprint is the version of the article before peer review or editing, as submitted by an author to the journal. It is also the version submitted to a preprint server.
Accepted Manuscript (AAM) or “Postprint” is ‘the version of the article accepted for publication including all changes made as a result of the peer review process, but excluding any editing, typesetting or other changes made by journal or publisher.
Final Published Version/Version of Record is the peer reviewed, edited, formatted and typeset version of the article, including any tagging, indexing and other enhancements from a publisher. It includes any post publication corrections made by a publisher. CrossCheck maintains a system which can check for Versions of Record on published articles.