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Blockchain state change transaction tracing method and device

A state change and blockchain technology, applied in the blockchain field, can solve problems such as the inability to directly trace block historical transaction records, and achieve the effect of improving traceability efficiency

Pending Publication Date: 2020-05-05
CHINA UNIONPAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a method and device for tracing blockchain state change transactions, which are used to solve the problem that the existing blockchain data can only query the latest state through smart contracts, and cannot directly trace the historical transaction records in the block

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  • Blockchain state change transaction tracing method and device
  • Blockchain state change transaction tracing method and device
  • Blockchain state change transaction tracing method and device

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] figure 1 It exemplarily shows a system architecture applicable to the embodiment of the present invention, and the system architecture may include multiple institutional clients 100 and a blockchain system 200 .

[0043] Among them, the institutional client 100 is used to communicate with the blockchain system 200, and send transaction data to the blockchain system 200 for processing and uploading to the chain.

[0044] The bloc...

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Abstract

The invention discloses a blockchain state change transaction tracing method and device. The method comprises the steps of: acquiring a transaction identifier of a to-be-traced transaction by a blockchain node, according to the transaction identifier, and determining a block chain state corresponding to the transaction identifier according to the transaction identifier, the block chain state comprising a historical transaction hash set, the historical transaction hash set comprising the hash value of the transaction when the block chain state changes; and determining transaction data of each history corresponding to the transaction identifier according to the historical transaction hash set. The transaction hash value is added in the blockchain state when the blockchain state is changed, and historical transaction data can be quickly searched, so that the problem that existing blockchain data can only query the latest state through a smart contract and cannot directly trace historicaltransaction records in a block can be solved, and the tracing efficiency of the historical transaction data is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of blockchain, and in particular, to a method and device for tracing blockchain state change transactions. Background technique [0002] In the blockchain electronic bill service system, due to the particularity of the electronic bill, the state tax bureau as the supervisory department needs to trace the entire process of the blockchain electronic bill from billing, printing, receipt, reimbursement, red rush, etc. The needs of malicious billing companies also need to trace the entire process information of invoices to further mine and analyze the corresponding behaviors of billing companies in each stage of invoicing. However, in the current scheme of querying data on the blockchain, only the latest blockchain status can be obtained, and there is no way to obtain the blockchain status changes in the blockchain, and thus cannot be directly traced Historical transaction records in th...

Claims

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Application Information

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IPC IPC(8): G06Q30/04G06Q40/00G06Q40/04
CPCG06Q30/04G06Q40/04G06Q40/10G06Q40/123
Inventor 许玉壮王贺贺朱涛胡景秀
Owner CHINA UNIONPAY
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