Weekly report-May 8, 2023

1. Fixed bugs in command-line tools.

Fixed bugs in command-line tools discovered during last week's testing. Conducted comprehensive testing to ensure normal use of command-line tools. 

2. Developed application case documentation.

Developed application case documentation for command-line contract deployment. Compiled the documentation for user reference and use. 

3. Improved functionalities of IVM virtual machine.

Improved functionality of IVM virtual machine by adding more arithmetic operations. This work requires in-depth research into the internal structure and operation principles of the IVM virtual machine, as well as step-by-step implementation and testing. 

4. Added chain-id verification to Ethereum cross-chain contracts.

Developing Ethereum cross-chain contracts and adding chain-id verification to ensure security and reliability. This work requires close collaboration with other teams and repeated testing and optimization. 

5. Tested and fixed bugs in cross-chain bridge smart contracts.

Conducted security testing and fixed vulnerabilities in cross-chain bridge smart contracts that could lead to attacks and asset loss. Timely fixes and optimizations were made to address the issues.