Privacy infrastructure makes a key breakthrough. Recently, two projects within the Solana ecosystem have launched private exchange features on the mainnet. One is Privacy Cash, a project focused on privacy, and the other is the stablecoin project $USDP. They seem to be doing similar things, but a closer look reveals obvious differences in their implementation paths.

Privacy Cash was the first to launch this solution, which is commendable. But the technical details are the key. Both schemes differ in the granularity of privacy protection, the routing mechanism for exchanges, and their compatibility with Solana's high-speed features. This reflects different trade-offs between privacy and performance.

For users wanting to conduct private transactions on Solana, the emergence of these two solutions indeed provides options. But to determine which is more reliable, one must look at the rigor of the technical implementation and the depth of security audits. This field is just getting started, and there will surely be more iterations in the future.