authenticity vs reality

authenticity

noun
  • The quality of being genuine or not corrupted from the original, of having the same origin (or attribution, commitment, intention, etc.) as claimed. 

reality

noun
  • The state of being actual or real; realness. 

  • The entirety of all that is real. 

  • The real world. 

  • An individual observer's own subjective perception of that which is real. 

  • A real entity, event, or other fact. 

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