EXPchain, developed by the Polyhedra Network, is a groundbreaking blockchain designed to redefine the intersection of artificial intelligence (AI) and decentralized technologies. As the foundation of Polyhedra's vision for a trustworthy AI ecosystem, EXPchain integrates advanced zero-knowledge machine learning (zkML) technology and an innovative Proof of Intelligence (PoI) framework. This unique combination ensures that AI applications built on EXPchain are not only scalable and efficient but also privacy-preserving and verifiable.Zero-Knowledge Machine Learning (zkML): Allows cryptographic verification of AI models and processes, ensuring trust in outcomes without exposing sensitive data.Expander Proof System: The world’s fastest zero-knowledge proof system. Sets a new benchmark for performance, enabling real-time verification of complex AI computations. Up to 1000x faster than alternative proof systems.Expanded Proof of Stake (ExPoS): A unified consensus model leveraging zero-knowledge proofs for scalable, transparent staking across blockchains.zkPyTorch: Seamlessly integrates zkML with the popular PyTorch AI framework, reducing development complexity and time.zkNative Blockchain Infrastructure: Purpose-built for AI, offering unparalleled scalability, finality, and cost-efficiency.