Blockchain consensus protocols have been a focus of attention since the advent of Bitcoin.
Although classic distributed consensus algorithms made significant contributions to the …

Byzantine fault-tolerant (BFT) consensus algorithms are at the core of providing safety and
liveness guarantees for distributed systems that must operate in the presence of arbitrary …

Blockchain has found applications to track ownership of digital assets. Yet, several
blockchains were shown vulnerable to network attacks. It is thus crucial for companies to …

Despite recent progresses of practical asynchronous Byzantine-fault tolerant (BFT)
consensus, the state-of-the-art designs still suffer from suboptimal performance. Particularly …

In this whitepaper, we articulate a vision for the evolution of Chainlink beyond its initial
conception in the original Chainlink whitepaper. We foresee an increasingly expansive role …

We introduce Themis, a scheme for introducing fair ordering of transactions into
(permissioned) Byzantine consensus protocols with at most ƒ faulty nodes among n≥ 4ƒ+ 1 …

User transactions on Ethereum's peer-to-peer network are at risk of being attacked. The
smart contracts building decentralized finance (DeFi) have introduced a new transaction …

Many cryptocurrency platforms are vulnerable to Maximal Extractable Value (MEV) attacks,
where a malicious consensus leader can inject transactions or change the order of user …

The use of blockchains for automated and adversarial trading has become commonplace.
However, due to the transparent nature of blockchains, an adversary is able to observe any …

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