FutureText: A Blockchain-based Contract Signing Prototype with Security and Convenience

This paper proposes a safe, convenient and Blockchain-based way to sign Privately Offered Fund (POF) contracts. Our contributions are as follows: First, in order to reduce the CO2 emission from printing, delivery and mostly for the sake of security, we set up an electronic procedure for signing POF contracts. Second, we design and implement FutureText prototype using Hyperchain, which helps to share privacy information among stakeholders while keeping forged signature, counterfeited seal and twin-contracts away. Finally, to follow the legitimacy and compliance, we put forward methods for both authentication and signature of tripartite contracts. Besides, we put encrypted contracts on Blockchain while keeping original contracts on local database using heterogeneous storage, and that helps alleviate the prototype's storage pressure.