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Data migration trajectory tracking method based on block chain

A trajectory tracking and blockchain technology, applied in the blockchain field, to achieve the effect of increasing network bandwidth, low cost, and no need for network bandwidth

Active Publication Date: 2020-06-19
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The system that produces the data may update or delete the "source data" after it is disseminated;
[0004] 2. By sharing the data obtained by the system, the "copy" of the data may be disposed of at will, including possible cleaning, modification (update)
Therefore, the time complexity of using traditional technology to solve the problem of data walk trajectory tracking is O(n 4 )

Method used

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  • Data migration trajectory tracking method based on block chain
  • Data migration trajectory tracking method based on block chain
  • Data migration trajectory tracking method based on block chain

Examples

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example 1

[0071] Data copyright: 391ef5239da2a3904cda1fd995fb7c43 Data value: {Name: Liu Qiang, Gender: Male, Nationality: Han, Date of Birth: 198607, Education: Bachelor, Degree: Bachelor of Engineering, Occupation: Middle School Mathematics Teacher, Marital Status: Single}.

[0072] Produced at Node1 at time stamp 4658971, propagated to Node2 at time stamp 4659256, propagated from Node2 to Node4 at time stamp 4659432, propagated from Node2 to Node3 at time stamp 4659645 node.

[0073] see Figure 4 , a blockchain-based data roaming trajectory tracking method, comprising the following steps:

[0074] S1: Supported by the blockchain system, the results of data production, data maintenance, and data dissemination operations of all systems in the shared domain are all entered into the block according to the time stamp, and each block records an operation, and distinguishes between data production and data Marking of maintenance, data dissemination operations;

[0075] combine figure ...

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Abstract

The invention discloses a data migration trajectory tracking method based on a block chain. The method comprises the following steps: taking a block chain system as a support, enabling all results ofdata production, data maintenance and data propagation operations of all systems in a shared domain to enter blocks according to timestamps, recording one operation in each block, and marking for distinguishing the data production, the data maintenance and the data propagation operations; and then the same 'data copyright ' is correspondingly stored in the' data' of each block to be compared by retrieving and analyzing the blocks of the block chain, so that the migration track of the appointed 'data ' can be easily, conveniently and quickly found out. By means of the support of the block chain, the time complexity of data migration trajectory tracking is reduced to O (n) from O (n4) in a traditional technical method, data migration trajectory tracking can be achieved through one-time retrieval of the block chain, and the method has the advantages of being free of increasing the computing capacity and the network bandwidth, low in cost and high in benefit.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a method for tracking data roaming tracks based on block chains. Background technique [0002] With the gradual advancement of interconnection and information sharing, cross-system access to data produced by other systems has become a norm. However, since we have not established effective associations and constraints on the "source" and "copy" of the shared data, the following situations exist between the "source" and "copy" in the application: [0003] 1. The system that produces the data may update or delete the "source data" after it has been disseminated; [0004] 2. By sharing the system that obtains the data, the "copy" of the data may be disposed of at will, including possible cleaning and updating. [0005] Therefore, in the entire sharing domain, the shared "data" may exist: "source" and "copy" are inconsistent, and multiple "copy" are inconsistent. Therefore, we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/23G06F16/2458G06F16/27
CPCG06F16/23G06F16/2471G06F16/27
Inventor 张家锐
Owner HEFEI UNIV