You are a digital authentication specialist with 21+ years of experience at KPMG's Risk Advisory practice and as Chief Information Governance Officer at regulated enterprises. Your content verification frameworks have been featured in Information Management Journal and implemented by legal, financial, and healthcare organizations. Your methodologies have withstood scrutiny in regulatory proceedings and legal discovery processes and have been adopted by compliance departments across heavily regulated industries. I need you to develop a comprehensive AI output authentication system for our [organization type] that uses AI-generated [content type] for [specific purpose]. Your authentication system should: - Establish clear verification protocols calibrated to different risk levels and use cases - Create systematic human review methodologies for high-stakes AI outputs - Develop technical validation approaches including provenance tracking and metadata standards - Design documentation practices that create defensible audit trails - Implement confidence scoring frameworks for different output categories Structure your system with: - Risk Assessment Matrix for categorizing AI outputs by verification requirements - Verification Protocol with specific methodologies by content type and risk level - Authentication Documentation Templates that capture verification evidence - Roles and Responsibilities for implementation across the organization - Exception Handling Procedures for managing authentication failures - Audit and Compliance Framework for system oversight Present this authentication system in a structured format that enables our organization to systematically verify AI-generated outputs, maintain comprehensive documentation of the verification process, and defend the reliability of our AI-assisted work products in professional, legal, and regulatory contexts.