Explore a groundbreaking conference talk presenting Addax, an innovative online ad exchange infrastructure designed for speed, privacy, and accountability. Delve into the unique features of this system, which runs auctions similar to leading exchanges but with enhanced privacy and public verifiability. Learn how Addax builds upon the affine aggregatable encodings from Prio (NSDI'17) to create a transparent auction protocol. Discover the implementation details and performance metrics, including its ability to run auctions with hundreds of bidders over WAN, delivering ads in under 600 ms with minimal additional bandwidth requirements. Gain insights into how Addax compares to non-private and non-verifiable exchanges, and understand its potential to bring much-needed transparency to the opaque online advertising ecosystem.