paper trail vs track record

paper trail

noun
  • A written record, history, or collection of evidence. 

  • Records left by a person or organization in the course of activities. 

  • Physical evidence of something that occurred in the past. 

track record

noun
  • Used other than figuratively or idiomatically: see track, record. 

  • The past performance of a person, organization, or product, viewed in its entirety and usually for the purpose of making a judgment. 

How often have the words paper trail and track record occurred in a corpus of books? (source: Google Ngram Viewer )