Similar to the Internet, blockchain technology is here to stay and is becoming the next big thing in the real world. Examples of these use cases include supply chain blockchain, smart contracts, identity management, speedier cross-border payments, and cryptocurrency. Efforts to create digital money have been unsuccessful due to trust and security concerns. On the other hand, users operate blockchain, eliminating the need for a central authority. Additionally, the inability to fake or change it generates significant market excitement and desire. Blockchain technology has stepped out of the realm of cryptocurrencies and is now finding its way into various real-world applications. As a result, we may anticipate that blockchain technology will become less complicated going forward. Decentralisation, integrity, immutability, verification, fault tolerance, anonymity, audibility, and transparency are desired properties of blockchain technology. In this paper, we first perform a comprehensive analysis of blockchain technology, focusing on its development, uses, and advantages; we also discuss the particulars of public key cryptography, the difficulties that blockchain presents for distributed transaction ledgers, and the long list of blockchain applications in the financial transaction system. This essay provides a thorough analysis of blockchain technology, outlining its potential across several industries as well as the major obstacles it has to overcome. The transaction system's detailed explanation of blockchain includes a rundown of the various cryptocurrencies. The paper’s comprehensive analysis includes a few of the recommended fixes.