paper trail vs transcription

paper trail

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

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

  • Physical evidence of something that occurred in the past. 

transcription

noun
  • The act or process of transcribing. 

  • A representation of speech sounds as phonetic symbols. 

  • The synthesis of RNA under the direction of DNA. 

  • An adaptation of a composition. 

  • A recorded radio or television programme. 

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