The chapter delves into the innovative fusion of blockchain technology and hardware security, unveiling a symbiotic relationship that promises to redefine trust and fortify digital ecosystems. In a rapidly evolving digital landscape, security and trust are paramount, and this chapter illuminates how blockchain technology contributes significantly to achieving these objectives. Blockchain’s core principles, including decentralization, immutability, and consensus mechanisms, serve as robust foundations for enhancing hardware security. By integrating blockchain into hardware systems, trust can be established through transparent, tamper-resistant ledgers that validate and authenticate hardware components. This trust is pivotal for safeguarding a wide array of applications, from securing Internet of Things (IoT) devices to bolstering supply chain integrity. The chapter also explores the practical implementation of blockchain within hardware security, highlighting cryptographic innovations and privacy-preserving protocols. Additionally, it delves into the benefits of leveraging smart contracts for automating and securing hardware-related transactions and processes. This exploration offers valuable insights and a roadmap for engineers, researchers, and cybersecurity professionals, enabling them to harness the full potential of blockchain technology to create more trustworthy and secure hardware systems. By embracing blockchain, we open doors to a future where hardware security and trust are fortified, setting the stage for the continued advancement of digital technology with confidence and resilience.