Abstract

Abstract: Blockchain is very emerging trend in recent years; it is basically decentralized approach which provides transparency to transactional data. While data security is the most essential requirement in the 21st century, distributed as well as the centralized environment. Identifying or validate the user's identity based on educational histories is a very tedious task. Many commercial applications validate by respective organizations based on physical verification. Search systems do not provide trustworthy information when declared on a centralized data basis, due to two database security concerns. Various database and software base intrusion attacks can harm centralized data and change the actual information. This paper, the system illustrates blockchain base e certificate generation for the educational field. In a real-time scenario, many organizations make document verification of particular employees on traditional approaches like physical verification, etc. The system proposes is E-certification and token generation using a strategic process which provides hassle-free e verification for the organization of specific employee. This system also carried out custom blockchain implementation with dynamic smart contract, and mining policy, which generate the Unique Identification (UID) number and QR code for each user for online verification. The final phase provides various consensus algorithms for drastic data verification and majority voting in the P2P network. The partial implementation of the system shows the effectiveness of the proposed system over the traditional approaches.Keywords: Blockchain, E-Certificate, Proof of Work, Consensus algorithm, Smart contract, mining.