chapter and verse vs paper trail

chapter and verse

noun
  • Specific references from an authoritative book or document, cited to support a statement or position. 

  • The chapter number and verse number (within a particular book) that locate a quotation from the Bible. 

  • Very full and detailed information. 

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. 

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