Introduction: The metaverse has swiftly evolved into a prevalent standard for digital communities and immersive virtual worlds. Its primary objective revolves around delivering users bespoke three-dimensional interactions achieved through the integration of various cuttingedge technologies. While the metaverse garners substantial interest and offers numerous advantages, it raises a fundamental query regarding the safeguarding of individual digital assets and information. In addressing this concern, blockchain emerges as a propitious resolution due to its unique attributes, such as decentralization, immutability, and transparency. Aim: In our endeavor to gain deeper insights into the blockchain's function in the metaverse. our objective is to offer a comprehensive examination of blockchain applications within the metaverse. Method: First, we introduce an initial overview of blockchain and its relevance to the metaverse, elucidating the driving factors that drive the adoption of blockchain within this context. Subsequently, we delve into a comprehensive examination of leveraging blockchain for enhancing the metaverse from various technical standpoints. Within each of these facets, we begin by addressing the technological hurdles faced by the metaverse and subsequently emphasize the ways in which blockchain technology can provide solutions. Furthermore, we explore the influence of blockchain on pivotal enabling technologies in the metaverse, encompassing areas such as the Internet of Things. Findings: The paper provides a thorough examination and analysis of blockchain's roles and impacts on the establishment and growth of applications and services within the metaverse. It initiates by outlining the fundamental principles of blockchain and the metaverse, exploring blockchain's significance in laying the groundwork for the metaverse's development. Subsequently, the paper delves into a thorough investigation of various technical facets and use cases of blockchain within the metaverse. Finally, the paper introduces technical enhancements for blockchain within the metaverse. Originality and value: The analysis indicates that it exhibited respectable construct reliability and precision.