Blockchain-Mediated Personal Data Access for Confidential Integration
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Solution Overview
Problem
Existing systems fail to effectively integrate and utilize individual data across different service providers while ensuring confidentiality and reliability, hindering comprehensive data utilization for personalized healthcare and quality of life improvements.
Innovation Solution
A blockchain-based system and method for data utilization that allows secure and reliable access to individual data by transmitting and registering data on a blockchain network, enabling secure sharing and integration of data across different service providers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual data is distributed across different service providers, then data confidentiality and security are improved, but data integration and comprehensive utilization deteriorate
Solution Approach 1:
The patent introduces a blockchain network as an intermediary layer between data holders and data users. The blockchain stores hashed values of individual data, serving as a trusted mediator that enables verification without exposing actual data content. This resolves the contradiction by allowing comprehensive data utilization through the intermediary while maintaining confidentiality of the underlying distributed data.
Solution Approach 2:
The patent creates cryptographic copies (hashed values) of individual data and stores them on the blockchain. These copies serve as verifiable representations that enable data utilization without exposing the original confidential data. The hashed values act as surrogates that maintain security while enabling comprehensive data integration and analysis.
2Productivity
If individual data is centralized in single service providers, then data integration is improved, but data security and privacy protection deteriorate
Solution Approach 1:
The patent segments individual data across multiple service providers rather than centralizing it. Each provider holds portions of the data locally, preventing any single point of failure or privacy breach. The blockchain stores only hashed values, further segmenting the data architecture to eliminate centralized privacy risks while maintaining integration capabilities.
3Productivity
If individual data is shared across multiple services, then comprehensive data utilization is improved, but data falsification risk increases
Solution Approach 1:
The patent implements a feedback mechanism where hashed values of individual data are registered on the blockchain, creating an immutable verification trail. This feedback loop allows any participant to verify data authenticity by comparing blockchain-stored hashes with local data, preventing falsification while enabling comprehensive data utilization across services.
Solution Approach 2:
The patent performs preliminary hashing of individual data before sharing or utilization. By pre-processing data into cryptographic hashes and storing them on the blockchain in advance, the system establishes an authenticating framework that prevents future falsification while enabling safe data utilization across multiple services.
Data Source
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AI summary
The purpose of the present invention is to provide a new data utilization system in which, while an individual independently uses and utilizes one's own personal data, security and anonymity of the data can be effected. An information processing device used by an individual comprises: a function of transmitting, over a network, data relating to an address on a blockchain network used by the individual to a provider-side information processing device comprising a storage device that is a provision source of data associated with information about the individual; a function of referring to access data (ACT) that includes the data relating to the blockchain network address and data for identifying the provision source of the data and that is issued by the provision-side information processing device for the blockchain network address; and a function of, on the basis of the access data (ACT), acquiring the data associated with the information about the individual from the provider-side storage device and storing said data at least in a storage device or a memory of said individual.