Research On Blockchain Cross-chain Technology Based On Hyperledger Sawtooth

With the continuous development and innovation of blockchain technology,a large number of blockchain networks with different characteristics and adapted to different scenarios have emerged in the fields of payment settlement,product traceability,and identity authentication,forming many value islands.How to realize the interconnection and value transfer between blockchains has become the current research focus of blockchain technology,and blockchain cross-chain technology is an important technical means to meet such needs.In this paper,based on the cross-chain requirements of the blockchain,based on the main theories and technologies of the existing blockchain,we systematically studied the four mainstreams of the notary mechanism,side chain / relay,hash lock,and distributed private key control Blockchain cross-chain technology and Hyperledger Sawtooth project,and analysis of cross-chain technology application scenarios.Through the deployment and research of the Hyperledger Sawtooth project,combined with the blockchain wallet application based on the project,this article is based on the blockchain transaction data flow,according to actual needs,designed and implemented a blockchain data cross-chain flow transfer Notary mechanism trading system.Through testing,it meets the functional and performance requirements of blockchain cross-chain.Finally,this article systematically analyzes the existing blockchain cross-chain typical projects under study,which has certain reference significance for mastering the crosschain research direction and progress.At the same time,it is pointed out that automatic data cross-chain based on smart contracts will be an important research direction for future cross-chain blockchain.The research in this paper shows that the cross-chain technology of blockchain not only has important research value,but also has broad practical application prospects.It is an important technical means to realize inter-chain interconnection and value transfer,and is the core and key technology of the blockchain 3.0 era.