What could be a difference between identification and authentication? In my understanding they are completely synonymous. I frequently use an IdP (identity provider) to authenticate for web applications.
Identity is who you really are. Be that you as an individual or as a corporation.... In the case of your bank they have a copy of your ID, your SSN, for them identity is what established the account and auth lets you work with it.... AWS might know some members of your company (either by corporate or individual card) but might not know your identity (as an individual) and yet you can still authenticate, because you have been authorized by an identified customer. I can transact with crypto as an authenticated user and NOT be identified.