基於Hyperledger Fabric 區塊鏈技術框架的時間銀行系統設計

A Time Bank System Design on the Basis of Hyperledger Fabric Framework

李育澤(Yu-Tse Lee)

指導教授 ： 劉志文

共同指導教授 ： 吳家麟(Ja-Ling Wu)

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2019年)

https://doi.org/10.6342/NTU201902677

摘要

本論文建構了基於區塊鏈技術的時間銀行系統，採用了Hyperledger Fabric 這個認許制區塊鏈鏈架構，過去在時間銀行的實現方面都還是採用人工的方式來紀錄每個人提供的服務，並且由人工來處理服務配對的工作，不但非常的耗時耗力並且缺乏安全性，本論文提出的時間銀行系統，能讓所有提供的服務都能存在區塊鏈上，並且能夠直接由智能合約來完成配對工作，除此之外，採用區塊鏈作為時間銀行的架構也方便進行時間幣的交易，我們同時也設計了一個在服務交易後的評分系統，使服務提供者或受取者更有意願提高服務品質亦或以更好的態度接受服務，促進整個系統的良性發展。

關鍵字

區塊鏈 ； 超級帳本 ； 時間銀行 ； 服務 ； 密碼學

並列摘要

This thesis designs and realizes a Blockchain-based Time Bank system on the basis of Hyperledger Fabric framework which is one of the permissioned blockchain networks. All of the services provided by existing Time Bank systems were recorded and conducted manually in the past. Also, jobs for matching these services were also managed by people. This way of running
Time Bank costs lots of time and human resources and lacks security.This thesis proposes a Time Bank system enabling all the services being executed and recorded on the blockchain. The matching tasks can directly be done through autonomous smart contracts. In addition, building a Time Bank system on blockchain benefits the transaction of”Time Credit”which plays the role of digital currencies on the system. Our Time Bank also retains a
grading system allowing its members to give each other a grade for reflecting their degree of satisfaction about the results provided the system. This grading system can incentivize the members to provide a better quality of service and adopt a nicer attitude for receiving a service, which may positively endorse the development of a worldwide Time Bank system.

並列關鍵字

Blockchain ； Hyperledger Fabric ； Time Bank ； Service ； Cryptographic

參考文獻

[1] E. S. Cahn, ”Time Dollars: The New Currency That Enables Americans to Turn Their Hidden Resource-Time-Into Personal Security and Community Renewal,”1992, Pennsylvania: Rodale Press.

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[3] What is the CES? (2019, May 16). Retrieved from https://www.communityexchange.org/home/what-is-the-ces/

[4] S. Nakamoto, “Bitcoin: a peer-to-peer electronic cash system”, [Online]. Available: https://bitcoin.org/bitcoin.pdf.

[5] V. Buterin, ”Ethereum: a next generation smart contract and decentralized application platform,” [Online]. Available: https://github.com/ethereum/wiki/wiki/White-Paper.