Users
User Privacy
Primev provides a simple cryptographic mechanism to abstract user address and connection privacy from external parties.
Primev protocol protects user privacy under two different contexts:
Identity & connection privacy
Bundle & transaction privacy
User Privacy
Primev contracts store data that could otherwise be leveraged to get a sense of which builders and searchers are connected. To control for this we’ve implemented the following simple commitment mechanism to protect user privacy:
c is the commitment that get’s added to the rollup. A more detailed flow of data is highlighted below:

To open the commitment, someone requires:
The builder can subsequently verify the commitment as follows:
Through this scheme we can ensure that no entity in the system can learn about more searcher <> builder relationships than the ones they are party to.
We’ve also architected builder-boost as a sidecar module to ensure block data remains in the builder’s environment, and existing trust relationships between searchers and builders continue to hold.