The objective of this research is to provide a systematic literature review on the topic of blockchain technology. In addition to avoid bias in their review and employ Python code to search the databases available online. The article under discussion offers the reader a detailed description of the nature, peculiarities, and use of blockchain in various spheres. The primary purpose is to determine the important research issues in different application fields and propose the future trends. The analysis covers over 50 articles from 2019 to 2024, which demonstrates the new directions in research on financial management, educational security, healthcare, IoT, and government uses. Also, there is a discussion of privacy protection measures and the discussion of the challenges and further steps for the successful application of blockchain.