Blockchain is a structure of data blocks arranged in sequential order, including reliability, data sharing, decentralization, security and, extensively used in a smart contract, digital currency, credit encryption, and other fields. Currently, there is a rapid increase in blockchain technology applications, offering opportunities to deal with the limitation in the online education field, e.g., the shortage of a unified e-learning assessment standard, the complication of e-learning assessment, and the concern of digital education certificates. In this paper, a secured blockchain system proposes building an adaptable and safe data delivery facility that interacts with current educational data. The proposed framework improves data security and eliminates trust concerns among users and, between other institutions accessing services and applications.