How to use zero-knowledge proofs in cross-chain applications? Dusk Foundation has provided a set of ideas. They are working on a ZK-based cross-chain communication protocol, and the core concept is quite straightforward—privacy assets need to flow between different chains, which requires generating state proofs on the source chain and then verifying them on the target chain. Once verified, the asset mapping is complete. The advantage of this design is that it avoids the pitfalls of traditional centralized cross-chain bridges.

$DUSK in this system serves two roles: one is to pay transaction fees, and the other is to incentivize liquidity. The goal is clear—to build an ecosystem of multi-chain privacy finance. According to the technical white paper, this cross-chain solution has now entered the testing phase, and the next goal is to enable asset interoperability within mainstream DeFi ecosystems.