paper trail vs written record

paper trail and written record both are nouns.

Word	Noun	Adjective	Verb	Adverb
paper trail	Yes	No	No	No
written record	Yes	No	No	No

As nouns, written record is a hypernym of paper trail; that is, written record is a word with a broader meaning than paper trail:

Other hypernyms of paper trail include written account.

paper trail (noun)	written record (noun)
the written evidence of someone's activities	a written document preserving knowledge of facts or events