Use the exhibit showing a service blueprint for a peer note-check service. Text exhibit: Service blueprint titled 'Peer note-check service'. Top customer actions: submit notes by 3:15, receive checklist next class, revise notes. Frontstage: student volunteer intake desk and return folder. Backstage: advisor-approved rubric, two peer reviewers, quality check. Evidence tag: each review under 8 minutes in pilot. Which value proposition best uses the backstage evidence without confusing it for customer value?