Cross-chain communication method and device for block chain in field of supply chains

A communication method and block chain technology, applied in the field of block chain cross-chain communication methods and devices, can solve the problem of inability to realize the interconnection and intercommunication of multiple alliance block chain information, inaccurate invoice information, and inability to query invoice information, etc. question

Active Publication Date: 2020-06-30
AEROSPACE INFORMATION
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Problems solved by technology

[0004] However, the current alliance blockchains established among various industries tend to be independent, that is to say, for the validity of invoices, each alliance blockchain in the supply chain needs to be verified by a trusted third party such as the tax bureau; The financing validity of invoices, each consortium blockchain in t

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  • Cross-chain communication method and device for block chain in field of supply chains
  • Cross-chain communication method and device for block chain in field of supply chains
  • Cross-chain communication method and device for block chain in field of supply chains

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[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0072] Blockchain (blockchain) is a distributed ledger technology, in the form of a chain data structure based on hash cryptography and Merkle tree model. The development of blockchain technology can be divided into three stages: the first stage is the emergence of digital currency represented by Bitcoin; the second stage is the emergence of smart contracts; the third stage is the transition from financial applications to non-financial applic...

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Abstract

The invention discloses a cross-chain communication method and device for a block chain in the field of supply chains. The method comprises the steps that after a first invoice information acquisitionrequest which is sent by a first financing institution and comprises an identifier of a to-be-inquired invoice is received, a second invoice information acquisition request is sent to an invoice alliance block chain according to a preset cross-chain inquiry contract, and the second invoice information acquisition request comprises the identifier of the to-be-inquired invoice and an identifier ofa connection block chain; and a second invoice information acquisition response which is sent by the invoice alliance block chain according to the identifier of the connection block chain and the identifier of the invoice to be inquired and comprises the invoice information of the invoice to be inquired is received, and a first invoice information acquisition response comprising the invoice information is sent to the first financing institution according to a preset cross-chain inquiry contract. Visibly, according to the method, the plurality of alliance block chains are connected through theconnection block chain, so that information transmission among the alliance block chains is realized, namely, cross-chain communication among the alliance block chains is realized, and the invoice information query accuracy is improved.

Description

technical field [0001] The present application relates to the field of blockchain communication, in particular to a method and device for cross-chain communication of blockchain in the field of supply chain. Background technique [0002] The generation of the alliance blockchain can be understood from the groups used by the alliance chain. Their main groups are banks, insurance, securities, business associations, group companies and upstream and downstream enterprises. [0003] The essence of supply chain finance is to use the bonds and property rights between enterprises in the supply chain for financing. When financial institutions carry out supply chain financial business, they need to review the authenticity of trade. As a voucher for transactions between enterprises, invoices have important reference value in defining the authenticity of trade. In order to prevent enterprises from using the same invoice for different financing projects, the immutable and traceable blo...

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Application Information

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IPC IPC(8): H04L29/08G06Q40/04G06Q30/04
CPCH04L67/1059G06Q30/04G06Q40/04H04L9/50
Inventor 张盼王申赵林牟森梁宵张京伟
Owner AEROSPACE INFORMATION
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