NFT Medical Data Access for Cross-Institution Integrity Control

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Solution Overview

Problem

Existing remote medical examination systems face challenges in ensuring data authenticity and security, particularly in cross-institutional data sharing, where medical data is difficult to handle in a cross-sectional manner and is vulnerable to falsification and fraud.

Innovation Solution

A system utilizing non-fungible tokens (NFTs) is implemented to manage and distribute medical data, where NFTs are minted for patient-specific medical data stored in a blockchain system, allowing secure access only to authorized medical institutes or researchers, while preventing data falsification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If medical data is stored in a centralized server using client-server system, then data access and management is simplified, but data security and authenticity are compromised due to vulnerability to falsification and fraud

Engineering Contradiction:

Improvedata access and managementVSAvoiddata authenticity and security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent segments the centralized data storage system into a distributed blockchain network where medical data is divided into blocks distributed across multiple nodes. Each node maintains a copy of the ledger, eliminating the single point of failure and vulnerability inherent in centralized servers. This segmentation allows data to be accessed and managed across the network while enhancing security through decentralization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces blockchain technology as an intermediary layer between data storage and access. The blockchain acts as a trusted mediator that verifies and records all data transactions through cryptographic hashing and consensus mechanisms. This intermediary ensures data authenticity without requiring a centralized authority, resolving the contradiction between ease of access and data security.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If medical data is shared across multiple institutions, then data utility and research value increase, but data security and control become more difficult to maintain

Engineering Contradiction:

Improvedata sharing and utilizationVSAvoiddata security and control

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent creates a universal blockchain-based data sharing platform that serves multiple medical institutions simultaneously. The system provides multi-functional capabilities including data storage, access control, authentication, and transaction tracking within a single decentralized network. This universal platform enables broad data sharing across institutions while maintaining consistent security protocols and control mechanisms throughout the network.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements feedback mechanisms through blockchain's consensus protocols and transaction verification systems. Each data access request generates a transaction that is verified by network nodes and recorded on the blockchain ledger. This creates a feedback loop where all data interactions are transparently tracked and authenticated, maintaining security and control while enabling widespread data sharing for research and diagnosis.

Inventive Principle:

Principle #23Feedback

3Ease of manufacture

If traditional access control methods are used for medical data, then implementation is simple, but authentication security and access reliability are insufficient

Engineering Contradiction:

Improveimplementation simplicityVSAvoidauthentication security

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces traditional mechanical authentication systems (passwords, access cards) with cryptographic mechanisms based on blockchain technology. Public-private key pairs provide mathematical proof of identity and ownership without requiring physical credentials or centralized authentication servers. This substitution maintains ease of implementation through standardized cryptographic protocols while dramatically enhancing authentication security through cryptographic verification.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20260066068A1Information Processing Method, Information Processing System, and Computer Readable Medium

Publication Date: 2026.03.05 OSAKA UNIVERSITY

AI summary

Provided are an information processing method, an information processing system, and a computer program enabling a data distribution while preventing falsification or fraud by using a non-fungible token (NFT). An information processing method includes processing of storing medical data relevant to a medical examination of a patient in a storage, minting an NFT corresponding to the stored medical data for a blockchain account of the patient in a blockchain system, and allowing an access to the medical data from a device of an owner of the NFT.