34 citations · 171 across the 39 of their papers we have counts for
5 papers · 1 filter
Understanding Blockchain Governance: Analyzing Decentralized Voting to Amend DeFi Smart Contracts
Johnnatan Messias, Vabuk Pahari, Balakrishnan Chandrasekaran +2
Decentralized Autonomous Organizations (DAOs) have emerged as a novel governance mechanism in blockchain ecosystems, particularly within Decentralized Finance (DeFi). By enabling t…
Dissecting Bitcoin and Ethereum Transactions: On the Lack of Transaction Contention and Prioritization Transparency in Blockchains
Johnnatan Messias, Vabuk Pahari, Balakrishnan Chandrasekaran +2
In permissionless blockchains, transaction issuers include a fee to incentivize miners to include their transactions. To accurately estimate this prioritization fee for a transacti…
Selfish & Opaque Transaction Ordering in the Bitcoin Blockchain: The Case for Chain Neutrality
Johnnatan Messias, Mohamed Alzayat, Balakrishnan Chandrasekaran +3
Most public blockchain protocols, including the popular Bitcoin and Ethereum blockchains, do not formally specify the order in which miners should select transactions from the pool…
Modeling Coordinated vs. P2P Mining: An Analysis of Inefficiency and Inequality in Proof-of-Work Blockchains
Mohamed Alzayat, Johnnatan Messias, Balakrishnan Chandrasekaran +2
We study efficiency in a proof-of-work blockchain with non-zero latencies, focusing in particular on the (inequality in) individual miners' efficiencies. Prior work attributed diff…
Forgetting the Forgotten with Letheia, Concealing Content Deletion from Persistent Observers
Mohsen Minaei, Mainack Mondal, Patrick Loiseau +2
Most social platforms offer mechanisms allowing users to delete their posts, and a significant fraction of users exercise this right to be forgotten. However, ironically, users' at…