Blockchain NFT Digital Locks for Physical and Non-Physical Property Access

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Solution Overview

Problem

Conventional lock and key systems are inadequate for securing both physical and non-physical property, particularly due to the replicability of traditional keys and the lack of applicability to digital assets, necessitating improved security measures.

Innovation Solution

A digital lock and key system utilizing non-fungible tokens (NFTs) with unique blockchain addresses to verify user access, ensuring secure unlocking of both physical and non-physical property.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional physical keys are used, then access control is simple and inexpensive, but security is compromised due to key replication vulnerability

Engineering Contradiction:

ImprovesecurityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical key-lock system with a digital blockchain-based verification system. Instead of physical keys that can be replicated, the system uses cryptographic NFTs stored on blockchain networks, eliminating the security vulnerability of physical key replication while maintaining access control functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a blockchain network as an intermediary between the user and the lock system. The blockchain verifies NFT ownership and authenticity, acting as a trusted mediator that eliminates the need for complex centralized authentication systems while providing robust security through cryptographic verification.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If conventional lock systems are used, then physical property access is controlled, but non-physical property access cannot be secured

Engineering Contradiction:

Improveapplication scopeVSAvoidsecurity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent creates a universal access control system where NFTs can grant access to both physical properties (through connected locks) and non-physical properties (through digital asset control). The same blockchain-verified NFT serves as the key for multiple types of assets, eliminating the need for separate systems while maintaining security through cryptographic verification.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If NFT verification system is implemented, then security against unauthorized access is improved, but system complexity and implementation cost increase

Engineering Contradiction:

ImprovesecurityVSAvoidimplementation ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent implements a self-service system where the blockchain network automatically verifies NFT ownership and authenticity without requiring manual intervention. The lock system simply queries the blockchain for NFT verification, and the blockchain autonomously provides the verification result, eliminating the need for complex authentication servers or manual verification processes.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12361148B1Digital lock and key system using non-fungible digital tokens and methods thereof

Publication Date: 2025.07.15 WHITE RYAN

AI summary

A digital lock and key system using non-fungible digital tokens is disclosed. The digital lock and key system includes a non-fungible digital token having a blockchain address; and a piece of property having a lock; wherein the lock verifies whether the user possesses a non-fungible digital token with a recognized blockchain address; wherein the lock grants access to the piece of property when the lock verifies the user's non-fungible digital token; wherein the lock denies access to the piece of property when the lock cannot verify the user's non-fungible digital token; wherein the piece of property is physical, non-physical, or both.