Decentralized Physical Infrastructure Networks (DePIN) are advancing AI infrastructure despite a sluggish crypto market in March 2026. Key developments include compute scaling and oracle innovations, which are driving new decentralized service models. Projects like Internet Computer and Chainlink are leading with significant milestones, such as reduced inflation rates and the introduction of real-time AI oracle feeds. Internet Computer has reduced inflation to 4% under its Mission 70 framework, while scaling its on-chain AI compute nodes threefold. Chainlink has launched real-time AI oracle feeds and a model verification layer, enhancing data reliability and integrating with GPU-based DePIN systems. Meanwhile, Virtual Protocol and Akash Network are expanding their compute and agent-based economies, with Virtual Protocol surpassing one million AI agents and Akash doubling its cloud compute capacity. Despite these advancements, the market remains under stress due to limited liquidity and macroeconomic conditions. The DePIN sector's growth highlights a shift towards utility-driven innovation, though market pricing has yet to reflect these developments, creating a volatile investment landscape.