These features are currently not achievable in typical EVM smart contracts, making universal on-chain Know Your Transaction (KYT) capabilities possible. The specific plan is as follows:
Universal Module for KYT: KYT capabilities need to analyze and detect various DeFi projects, sharing KYT information rather than adapting it separately for each dApp. Therefore, on-chain KYT should be a universal module that every dApp project can easily integrate.
Efficient KYT Execution: The current off-chain KYT system primarily uses contract interaction, log event analysis, address algorithm labeling, etc., to form a risk control algorithm system. The native-level hook of aspects can obtain corresponding data with high efficiency, making universal on-chain KYT capabilities possible. On-chain KYT can be more promptly used by dApps. For example, if a risk rule detects an attacker using a flash loan for a reentrancy attack in a transaction, the on-chain KYT can intercept cross-chain operations by the attacker in the same transaction.
Community Contribution: Through aspects, on-chain tracking of money laundering routes may be possible. For instance, funds extracted from Tornado Cash could be marked as risky in the aspect's world state. In each subsequent block, calls to the AML aspect would trigger risk control rules, checking fund flows in the entire block. If there is an outflow from the marked risky address, the receiving address of that fund flow would be marked as a second-degree risky address (similar to off-chain, excluding DEX and other hot addresses). This requires community contributions to trigger the aspect and execute risk control rules.