If organizations want to reap real business benefits from their investments in AI, customers need to trust it. Systemic social mistrust in AI can be dissolved only when questions about how this technology works — from customers, regulators, and other appropriate parties — can be answered. Using blockchain-based accountability provides an attainable, operational path to accountability and enforceability. FICO developed a private blockchain that automated documentation and standards in model development. This approach sped its time to market with AI and analytic innovation, but has also helped keep new models in production; blockchain has reduced support issues and model recalls by over 90%. Making this system work was less a tech challenge than a people one. They learned it was important to start with standards, then develop the tech; that making the system user-friendly was non-negotiable; that it was essential to iterate on quick wins; that they had to build repositories to hold large AI assets in alternate storage; and that they needed capable IT teams to handle the maintenance demands of this system.