Sources

Everything, and who checked it.

The site says every line has a source you can open. This is the page where that has to be true. Each entry carries the date a person opened it and the name of the person who did — a model may draft a citation, but the build refuses to ship one until somebody has read it.

That refusal is not a formality. A citation that reads perfectly and does not exist — right journal, plausible volume, plausible DOI, paper never written — is exactly what a language model produces when asked to recall a reference instead of retrieve one, and no amount of proofreading catches it, because the prose is immaculate.