[Retracted] System Design for Online Foreign Language Education Based on Blockchain Technology

Table 1

System development and operation environment.

Development environment	Development tool name
Development tool	WebStorm
Back end service language	Nodejs
Front end frame	React
Back end frame	Express
BC platform	Ethereum platform
Ethereum client	Parity wallet
Software development kit	Web3js
Browser	Chrome
Ethereum plug-in wallet	MetaMask (chrome)
Operating system	Windows 10
CPU (central processing unit)	Intel core i7-7700 3.60 GHz
RAM (random access memory)	8 GB
Hard disk	500 GB