4 papers
Towards Decentralized Searcher Competition in MEV Markets
Roozbeh Sarenche, Yunwen Liu
Centralization in maximal extractable value (MEV) markets is a significant concern for blockchain systems, as persistent concentration of economic power can weaken competition, red…
Bitcoin under Volatile Block Rewards: How Mempool Statistics Can Influence Bitcoin Mining
Roozbeh Sarenche, Alireza Aghabagherloo, Svetla Nikova +1
The security of Bitcoin protocols is deeply dependent on the incentives provided to miners, which come from a combination of block rewards and transaction fees. As Bitcoin experien…
Commitment Attacks on Ethereum's Reward Mechanism
Roozbeh Sarenche, Ertem Nusret Tas, Barnabe Monnot +2
Validators in permissionless, large-scale blockchains, such as Ethereum, are typically payoff-maximizing, rational actors. Ethereum relies on in-protocol incentives, like rewards f…
Mining Power Destruction Attacks in the Presence of Petty-Compliant Mining Pools
Roozbeh Sarenche, Svetla Nikova, Bart Preneel
Bitcoin's security relies on its Proof-of-Work consensus, where miners solve puzzles to propose blocks. The puzzle's difficulty is set by the difficulty adjustment mechanism (DAM),…