Depository receipt application transaction system and method based on blockchain

Abstract

The invention discloses a depository receipt application transaction system based on blockchain, and relates to the technical field of blockchain. The system comprises a user blockchain platform, a main blockchain platform, and a processing module. The user blockchain platform comprises at least two user units and a supervision unit, and each user unit comprises an expenditure item subchain and anincome item subchain, wherein the expenditure item subchain is used for storing a depository receipt document generated by a user, and the income item subchain is used for storing the depository receipt document received by the user. The supervision unit is used for the backup of the depository receipt documents stored in all user units. The main blockchain platform comprises a first main chain and a second main chain, wherein the first main chain is used for storing the subchain state information of each user unit, and the second main chain is used for storing the address of each user unit.The processing module is used for comparing whether the Hash values of the subchains of the user units are the same as a Hash value stored in the first block chain at any time or not. According to theinvention, the processing performance of the system is not limited by the number of users, and a problem that data is rapidly expanded is solved. The system has a good privacy protection function, and can effectively prevent the document data from being tampered.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a block chain-based certificate deposit application transaction system and method. Background technique [0002] The concept of blockchain mainly comes from Bitcoin and has become known to the public with the popularity of Bitcoin. The blockchain mainly has the following characteristics: decentralization, collective maintenance, and collective certification, thereby generating trust and value transmission. Therefore, blockchain technology has recently received attention from academia and industry and is widely used. [0003] However, the application of blockchain technology also faces many problems. The first is the storage problem of the blockchain. The blockchain needs to keep an identical backup at each node. As the number of transactions increases, this poses a challenge to the storage capacity of nodes. The second is the problem of transaction performance. The current ...

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Problems solved by technology

[0006] In view of the defects existing in the prior art, the purpose of the present invention is to provide a blockchain-based certificate deposit application transaction system, which not only has the advantages of decentralization, non-tampering, collective storage, and collective proof of the blockchain, but also It solves the problem of processing performance, prevents the problem of data expansion, and has a good privacy protection function

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