How to understand the execution layer of dymension in a simple and easy way?
First, let's take a look at the Execution Layer-RollApp Architecture. This is an architecture in the dYmension project that allows applications to run in an isolated environment, like a small autonomous execution system. The benefit of this architecture is that it can provide a safer and more efficient operating environment, allowing applications to handle their own transactions independently and to select different data availability providers to ensure the smooth release and use of data.
Next is Fraud Proof Design. This is an optimistic design in the dYmension project that assumes that the sequence controller is honest. But in order to ensure an environment with minimal trust, the designer introduced a dispute period. During this dispute period, other participants can verify whether the state update submitted by the sequence controller is valid. If fraud is found, any participant who does not need special permission can issue a fraud proof to prove that the state transition is valid. If the settlement layer confirms that the state of the RollApp is fraudulent, the state will be restored to the previously agreed state, and the malicious sequence controller will be punished.
Finally, there is Sequencer Decentralization. dYmension introduces a mechanism that allows applications to be processed between multiple sequence controllers, which we can call permissioned and permissionless PoS sequence control. Because RollApp relies on the consensus of the settlement layer, the election mechanism for RollApp sequence controllers is based on the proportion of the number of DYM (dYmension's native asset) staked on the settlement layer. This mechanism allows RollApp deployers and governance to decide on whitelist criteria and other requirements for sequence controllers.
Summary: Execution Layer-RollApp Architecture is an architecture that allows applications to run in an independent environment, providing a secure and efficient operating environment. Fraud Proof Design is an optimistic design approach that ensures the credibility of the environment by introducing dispute periods and fraud proofs. Sequencer Decentralization allows applications to be processed between multiple sequence controllers, and sequence controllers are selected based on the proportion of the number of DYMs pledged. These designs and mechanisms together build the foundation of the dYmension project, providing a secure and reliable operating environment for applications.
