블록체인과 분산형 스토리지(IPFS)를 이용한 부동산 거래 시스템 구현
Implementation of a Real Estate Transaction System Using Blockchain and Decentralized Storage(IPFS)
- 주제어 (키워드) Blockchain , Smart Contract , Real Estate Transaction , Real-Time , IPFS , IPNS
- 발행기관 서강대학교 일반대학원
- 지도교수 장주욱
- 발행년도 2025
- 학위수여년월 2025. 8
- 학위명 석사
- 학과 및 전공 일반대학원 전자공학과
- 실제 URI http://www.dcollection.net/handler/sogang/000000081748
- UCI I804:11029-000000081748
- 본문언어 영어
- 저작권 서강대학교 논문은 저작권 보호를 받습니다.
초록 (요약문)
This paper proposes a real-time real estate transaction system that integrates blockchain with decentralized storage (IPFS) to achieve both reliability and efficiency. In the proposed system, each property is represented by an individual smart contract, allowing real-time on-chain management of ownership and contract status. This design enables anyone to verify the current state of a property, thereby enhancing transparency and trust in the transaction process. To overcome the high gas costs and limited storage capacity of the blockchain, transaction-related documents such as property ledgers are stored in IPFS, while only their hash values are referenced on-chain. Unlike conventional registry systems that record only final outcomes and overwrite past data, this system employs IPNS to provide a persistent addressing mechanism. As a result, users can access the most up-to-date version of a property ledger in real time whenever updates occur, while preserving long-term accessibility and data integrity. This architecture demonstrates that combining blockchain with IPFS/IPNS offers a practical solution for enabling trusted, real-time, and cost-effective property transactions.
more목차
I. Introduction 6
II. Related works 9
III. Proposed Method 17
IV. Implementation 41
V. Conclusion 66
Reference 68
