<p>The Domain Name System (DNS) serves as a foundational component of the Internet, enabling the translation of human-readable domain names into machine-readable IP addresses. Despite its critical importance, traditional DNS architectures suffer from inherent centralization, which introduces vulnerabilities such as single points of failure and heightened susceptibility to cyber-attacks. These challenges are further exacerbated in big data environments due to non-standardized and unreliable record handling across numerous resolvers. This paper proposes a decentralized approach to DNS using cross-chain technology to enhance security, reliability, and control. The system architecture combines a main chain with multiple regional subchains, utilizing Domain Name Service Coins (DNRC) and an atomic swap protocol to facilitate secure and efficient cross-chain operations. We developed several novel components: a Node Selection Algorithm that optimizes DNS resolution, a Domain Name Resolution Service model to support equitable resource distribution, and a Service Priority Scheme that adjusts based on transaction fees and regional coin balances. Experimental evaluations highlight substantial improvements in resolution accuracy and system throughput, with the network maintaining resolution rates above 98% under high request loads. This work contributes to DNS management by offering a scalable and robust blockchain-based framework that addresses the shortcomings of conventional DNS systems, representing a significant advancement in creating a more secure and equitable global DNS infrastructure.</p>