The World Economic Forum's Known Traveller Digital Identity (KTDI) initiative represents a significant intersection of blockchain technology and global travel infrastructure. This project explores how decentralized digital identity solutions could streamline border security and enhance traveler experiences worldwide. As the adoption of blockchain-based identity systems accelerates, KTDI stands out as a pivotal case study in demonstrating how traditional institutions are integrating crypto-native solutions to address real-world challenges. The implications for digital identity frameworks and Web3 adoption continue to expand across government and enterprise sectors.