What Bibliographic Information Is Actually For

Every source, whatever its type, carries bibliographic information that identifies it: a title, an author, the year it was published or created. That's JSTOR Daily's term for the bundle, and the guidance makes a point of saying the bundle varies — some sources carry more of it than others, depending on how each was published or created and how much is known about it. A dataset, a photograph and a journal article don't arrive equally documented, and the record you keep has to reflect that asymmetry rather than pretend it away. Some of that is just the reality of how material gets made and preserved, and it's worth noticing which of your sources came with a paper trail and which you're trusting mostly on vibes. The payoff is not tidiness. Keeping the details lets you evaluate and verify a source's credibility, find it again when you need it, and cite it properly in your own work. A citation, on this account, is less a courtesy to the reader than the receipt that makes the claim checkable — including by you, six months later, when you've forgotten why you believed it.