Decentralized exchanges offer trustless non-custodial trading, improved transparency, and ability
to share order books. Despite these advantages, decentralized exchanges today account for a
negligible percentage of the overall cryptocurrency transaction volume. Reasons for lack of
adoption include high technical barrier to entry, performance and usability issues, availability,
and lack of incentives for coordination. Hydro is a middleware layer on top of an incentive
system for decentralized exchanges.