Assuming this specific LLC was established in your state, go to your state's Secretary of State's web site and look at the terminology used there and the types of documentation available. Make certain your SOS even provides a "Certificate of Filing" or a "Certificate of Formation." (Clearly they use the term "Articles of Organization" if someone gave you one.) Also, pull the files on a couple LLC's that have opened accounts in recent years and see exactly what documents are in those files.
My point is that whoever set up your CIP may not have used the terms actually in use in your state and no one paid any attention to the specific terminology before now. Your CIP should use the terms actually in use in your state or provide synonyms. "Articles of organization" are evidence of existence, but your CIP should list them as such before you accept them.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.