Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:T2-4
Session:
Number:4841
Intellectual Property Protection using Decentralized Trusted Timestamping Based on the Blockchain
Yuefei Gao, Hajime Nobuhara ,
pp.535-538
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
Present decentralized trusted timestamping based on the blockchain only provide 40-byte storage for digital files. This does not permit sufficient storage to encode other information. The proposed method expands the storage space to a maximum of N*40 bytes, thereby enabling the storage of additional information (e.g., file name, creator name, and keywords). Experimental results indicate that the proposed method can timestamp a file in an average of 20 min at a possible cost of 0.24 USD. We consider that the proposed method can prove the existence and integrity of a digital file.