October 1 to October 31, 2021
Technology Development：
1. Solve the node compilation dependency problem and the peer connection timeout problem.
2. Submit the hashgraph code and test the logic, solve the code bugs.
3. Design and code the internal transaction interface, and test the interface input and output.
4. Complete the transaction construction interface, and verify the transaction signature and the processing interface of the signed transaction.
5. Add the log of critical path of p2p module for fault discovery and exception location.
6. Design and add the code logic of the hashgraph cache part.
7. Update the go mod dependency package to solve the compatibility problem introduced by the newly upgraded dependency package.
8. Add unit test file for hashgraph module.
9. Add and test hashgraph badger_store logic to solve related problems
10. Solve node state interface compatibility problems and design node state transition logic.
11. Exchanges intergration technology support.
