| Summary: | 碩士 === 國立高雄第一科技大學 === 電腦與通訊工程系碩士專班 === 106 === This study investigates the decentralization, openness, tamperproof data, and anonymity of the blockchain cryptography, and compares this with the functions of the Proof of Existence service. The study explores which mechanisms are used in implementing certification relating to the the existence of the blockchain, and then the Proof of Existence services are developed on the Ethereum blockchain platform.
The Proof of Existence service employs a Web-based architecture, so that users can use the service without having to install any software. The process does not reveal information about the original file, as only the ownership of the file is proved. The files are not uploaded to any servers, and only local operations are used during the process to avoid any doubts relating data leakage.
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