Blockchain Transaction Management for CtoC Rental Trust

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Solution Overview

Problem

Conventional systems lack the ability to facilitate safe transactions of rental items and values between individuals in a Consumer to Consumer (CtoC) electronic commerce setting, both in real and virtual spaces, without maintaining trust between transactors.

Innovation Solution

An information processing device and method that utilizes a block chain or distributed ledger to record and manage transaction information, including user and value-related data, and a transaction control unit to manage and control subsequent transactions based on this information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional CtoC electronic commerce systems are used for item transactions, then buying and selling items between individuals is enabled, but lending and renting rental items between individuals is not supported

Engineering Contradiction:

Improvetransaction type supportVSAvoidtrust maintenance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent extends the transaction framework to support multiple transaction types (buying, selling, lending, renting) within a single CtoC electronic commerce system. The management server and smart contract infrastructure are designed to handle diverse transaction modes uniformly, enabling individuals to engage in various value exchange activities while maintaining consistent trust mechanisms across all transaction types.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces a management server and smart contract intermediary layer that facilitates transactions between individuals without requiring traditional centralized platforms. This intermediary records transaction information on the blockchain, verifies smart contract conditions, and ensures trustworthy execution of various transaction types including lending and renting, thereby maintaining reliability while expanding adaptability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If transactions are conducted between real space and virtual space, then cross-space value exchange is enabled, but transaction safety and trust maintenance become challenging

Engineering Contradiction:

Improvecross-space transaction capabilityVSAvoidtransaction safety

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The management server acts as a trusted intermediary that coordinates transactions between real space and virtual space. It records transaction information on the blockchain, manages smart contract execution, and ensures that value exchanges across spaces are transparent and verifiable, thereby maintaining safety while enabling cross-space adaptability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional centralized trust mechanisms with blockchain-based cryptographic verification and smart contract automation. This substitution eliminates the need for centralized intermediaries in conventional systems while providing enhanced transaction safety through decentralized consensus and immutable ledger recording, enabling secure cross-space transactions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If blockchain technology is used to record transaction information, then transaction integrity and trust are maintained, but system complexity increases

Engineering Contradiction:

Improvetransaction integrityVSAvoidsystem structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The management server serves as an intermediary that abstracts the complexity of blockchain operations from users and conventional systems. It handles blockchain interaction, smart contract deployment and execution, and transaction information recording, thereby maintaining transaction integrity through blockchain while shielding users from underlying system complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the system into distinct functional layers: the conventional CtoC transaction layer, the management server layer that handles blockchain integration, and the blockchain layer that provides integrity verification. This segmentation allows each layer to operate independently with well-defined interfaces, maintaining transaction integrity through blockchain while reducing overall system complexity through modular architecture.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250209446A1Information processing device, information processing method, and program

Publication Date: 2025.06.26 REALIZE CORP INC

AI summary

An information processing device includes a management unit and a transaction control unit. The management unit records and manages, when a first transaction for exchanging, between a first user who is present in a real space or a virtual space, the first user having a first value in the real space or the virtual space, and a second user who is present in the real space or a virtual space, the second user having a second value in the real space or the virtual space, the first value and the second value has been conducted, in a block chain or a distributed ledger, as transaction information, information relating to the first value, information relating to the first user, information relating to the second value, and information relating to the second user. The transaction control unit controls, when a second transaction relating to at least one of the first value, the first user, the second value, or the second user is to be conducted, the second transaction by using the transaction information recorded and managed in the block chain or the distributed ledger by the management unit.