Blockchain Technology a Powerful Solution To Securely Verify Digital Credentials Nonetheless, traditional consensus mechanisms such as Proof of Work (PoW) and Proof of Stake (PoS) also have disadvantages, such as extensive energy expenditure, scalability limitations, and possible centralization risks. In order to overcome these issues, this study proposes a hybrid consensus model combining Delegated Proof of Authority (DPoA) with sharding. This method increases efficiency, accelerates transaction speed, minimizes latency, and preserves a decentralized validation process. According to the evaluation, its empirical performance exceeds many traditional consensus methods, leading to efficient credential verification for large-scale distributed users.