The importance of institutional repositories in upholding academic integrity has been explored in this study to bridge the gap between intellectual content and ethical conduct in the pursuit of scholarly reputation by major Nigerian universities. Through a case based methodology, an i-Repo architecture abstracting institutional repository services was proposed with mechanisms that deter academic misconduct and promote a culture of originality in academic content, using the University of Benin as a case study. The study evaluation established core repository and integrity services via a semi-automated quality assurance tool – TestRail. The results and findings showed that the projected i-Repo solution demonstrated an efficiency rate of 91% for digital repository services of preserving academic content (thesis, dissertations, articles, and scholarly communications), with implications that it also serves as a deterrent to plagiarism and a tool for the credibility and integrity of scholarly reputation.