In order to further increase the security of contract operations and prevent malicious contract termination, PalletOne has optimized the function of the contract termination part and added permission control. At present, contract termination rights management has been completed.

The contract of PalletOne is divided into system contract and user contract according to the function and application scenario. The system contract is loaded with the startup of the gptn system, which mainly completes the contracts with high efficiency and fixed functions, such as voting, margin, Prc20, Prc721, system configuration and so on. Docker is used as the running environment for user contracts. It supports go, java, nodejs and other language types, and realizes the contract based on contract template or user writing and publishing, which is divided into four steps: installation, deployment, execution and termination.