METHOD AND DEVICE FOR BLOCKCHAIN TRANSACTION TRACING

Title:

METHOD AND DEVICE FOR BLOCKCHAIN TRANSACTION TRACING

Document Type and Number:

WIPO Patent Application WO/2020/177488

Kind Code:

A1

Abstract:

A method and device for blockchain transaction tracing, which are used to solve the problems in the prior art of being unable to quickly construct a tracing path for a transaction and relatively large system overhead. The method comprises: acquiring information of a transaction to be traced, the information of the transaction to be traced comprising an input value for the transaction to be traced; determining a leaf node of the transaction to be traced according to the input value for the transaction to be traced and a Bloom filter corresponding to each block in a blockchain system, the Bloom filter storing an output value of a transaction comprised in the block; and according to the leaf node of the transaction to be traced, generating a tracing path for the transaction to be traced. By means of carrying out transaction tracing on the basis of the Bloom filter corresponding to each block and the input value for the transaction to be traced as disclosed in the embodiments of the present invention, a tracing path for the transaction to be traced may be quickly generated, which is beneficial for improving the tracing efficiency of a tracing path, and which decreases system overhead.

Inventors:

XU YUZHUANG (CN)
ZHOU YU (CN)

Application Number:

PCT/CN2020/071551

Publication Date:

September 10, 2020

Filing Date:

January 10, 2020

Export Citation:

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Assignee:

CHINA UNIONPAY CO LTD (CN)

International Classes:

G06Q40/04

Foreign References:

CN107247773A	2017-10-13
CN108615156A	2018-10-02
US20180097779A1	2018-04-05

Other References: