Recent years have witnessed significant advancements in cross-chain technology.
However, the field faces two pressing challenges. On the one hand, hacks on cross-chain …

Trading on decentralized exchanges has been one of the primary use cases for
permissionless blockchains with daily trading volume exceeding billions of US ‍dollars. In the …

Blockchains offer strong security guarantees, but they cannot protect the ordering of
transactions. Powerful players, such as miners, sequencers, and sophisticated bots, can …

This fundamentals article discusses efficient machine economies in which non-human
agents can autonomously exchange information and value. We first identify criteria for …

The incentive-compatibility properties of blockchain transaction fee mechanisms have been
investigated with passive block producers that are motivated purely by the net rewards …

Traditional blockchains grant the miner of a block full control not only over which
transactions but also their order. This constitutes a major flaw discovered with the …

The Ethereum blockchain network enables transaction processing and smart-contract
execution through levies of transaction fees, commonly known as gas fees. This framework …

Maximal Extractable Value (MEV) has generally been viewed as a negative, parasitic aspect
of economic transactions on blockchains that increases costs for non-strategic users. Recent …

Maximal (also miner) extractable value, or MEV, usually refers to the value that privileged
players can extract by strategically ordering, censoring, and placing transactions in a …

The decentralized finance (DeFi) ecosystem has proven to be popular in facilitating financial
operations, such as token exchange and lending. The public availability of DeFi platforms' …