Considering that the DBFT consensus mechanism has unique advantages in solving the low expansion, low concurrency and low transaction feedback of the public chain, and has achieved practical results, Super Gold's cryptocurrency SPG tends to be more decentralized in its production mode. The workload proves the mining output mode under the mechanism, so Super Gold creatively combines the transaction verification under the DBFT consensus mechanism with the classic stable workload proof algorithm Ethash, separating the synchronization of transaction verification and block packing to more Good solution to the low scalability, low concurrency, low transaction feedback and block congestion of the blockchain, while Super Gold's smart contract system is more suitable for the current status and trends of blockchain technology development, cross-chain agreements support cross-chain transactions, which can create a public chain platform with higher universality, wider application range and more prosperous and stable ecology.