Multi-Dimensional Blockchain for Traceable Data Modification
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Solution Overview
Problem
Conventional blockchain systems face challenges in allowing data deletion and modification due to their immutable nature, which conflicts with regulations such as GDPR, and are not suitable for industries requiring data control and deletion, such as banking, insurance, and healthcare.
Innovation Solution
A multi-dimensional blockchain system comprising a main blockchain, a control blockchain, and an owner blockchain, which enables data modification and forwarding through controlled commands recorded in a traceable manner, using hash values to authenticate and manage data changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is stored on a blockchain system, then data immutability and security are improved, but data deletion and modification capabilities deteriorate
Solution Approach 1:
The blockchain system is segmented into multiple independent chains: a main blockchain for storing original data, a control blockchain for storing modification commands, and an owner blockchain for tracking data ownership. This segmentation allows the main blockchain to maintain immutability while the control blockchain enables controlled modifications through separate command recording.
Solution Approach 2:
The patent introduces a new dimension by adding control blockchain and owner blockchain alongside the main blockchain. Instead of modifying the existing single-chain structure, it adds additional dimensions (control dimension and ownership dimension) that enable modification and deletion capabilities without compromising the main blockchain's immutability.
2Device complexity
If a single blockchain chain is used, then system simplicity is improved, but data control and traceability capabilities deteriorate
Solution Approach 1:
The system segments functionality across multiple chains: main blockchain for data storage, control blockchain for modification commands, and owner blockchain for ownership tracking. Each chain handles specific operations, making the overall system more manageable and easier to operate despite the increased number of components.
Solution Approach 2:
The control blockchain acts as an intermediary between data owners and the main blockchain. Instead of directly modifying the main blockchain, modification commands are first recorded on the control blockchain, which then mediates the actual data changes, providing better traceability and control.
3Reliability
If conventional blockchain is used, then data security is improved, but compliance with regulatory requirements deteriorates
Solution Approach 1:
The control blockchain records modification commands in advance before actual data changes occur on the main blockchain. This preliminary recording of modification intentions allows the system to comply with regulatory requirements like GDPR by tracking and managing data deletion requests before they affect the main data storage.
Solution Approach 2:
The owner blockchain provides feedback mechanisms that track data ownership and modification history. This feedback loop enables the system to respond to regulatory requirements by identifying data owners, tracking their data, and executing deletion or modification commands while maintaining security.
Data Source
AI summary
The present disclosure provides a multi dimension blockchain which comprises a main blockchain, a control blockchain and an owner blockchain. The main blockchain stores data in blocks. The control blockchain allows a user allocated as the owner of a data block to modify or forward data stored in that data block. The owner blockchain and the control blockchain allow modifications or forwarding of the data stored in the main blockchain to be recorded in a traceable way. Methods of modifying data stored on the main blockchain, methods of forwarding data stored on the main blockchain and methods of authenticating the data stored on the main blockchain are provided.