Cross-chain Study On Notary Mechanism Based On Credit Ranking And Time Decay

Cross-chain technology realizes the exchange between different asset holders without changing the total amount of assets on the chain,effectively solving the problem of industry blockchain partition.At present,among the mainstream cross-chain technologies,the notary mechanism is most widely used in digital currency financial exchanges,but the notary mechanism has an obvious flaw that the notary who needs to participate is safe and credible enough.Therefore,this article does the following:The notary public mechanism is a cross-chain technology based on credit endorsement nodes.Aiming at the single problem of notary endorsing node credit evaluation,it is proposed to apply the weighted LeaderRank algorithm to the cross-chain model.By collecting node historical transaction efficiency,user evaluation and evaluation feedback data,calculating the node comprehensive credit improvement the-weighted-LeaderRank-algorithm’s weight composition,participating in the trust ranking algorithm,obtaining safe and credible notary nodes,making the notary mechanism more stable and credible.The results show that the improved IWLR(Weighted LeaderRank algorithm based on comprehensive credit evaluation)algorithm comprehensively analyzes the node historical transaction evaluation information and transaction trust relationship,which is of great significance for accurately selecting the notary node and maintaining the safety and reliability of the notary mechanism.Node trust ranking provides an important basis for candidate notary nodes.Aiming at the problem of unfair ordering of old and new nodes in the IWLR algorithm,this paper introduces a time decay factor to optimize the node ordering.Based on the IWLR algorithm,the time decay factor is introduced on the basis of obtaining the comprehensive credit score of the node,and the node heat is reasonably distributed,and then the active trusted nodes are selected to participate in the cross-chain transaction of the notary.Experiments show that the improved ITWLR(IWLR algorithm based on time attenuation)algorithm dynamically analyzes the historical evaluation of nodes and the active state of nodes,and optimizes the rise and sinking of nodes,which is of great significance for stimulating nodes to participate in cross-chain transactions,accurately selecting notaries nodes,and maintaining the safety and reliability of the notary mechanism.