17 citations · 24 across the 7 of their papers we have counts for
9 papers
Bitcoin-IPC: Scaling Bitcoin with a Network of Proof-of-Stake Subnets
Marko Vukolić, Orestis Alpos, Jakov Mitrovski +3
Despite holding over $1.7T in value, Bitcoin scales poorly: Layer-1 (L1) processes only a few transactions per second, and Layer-2 (L2) solutions suffer from operational and liquid…
An overview of the efficiency and censorship-resistance guarantees of widely-used consensus protocols
Orestis Alpos, Bernardo David, Nikolas Kamarinakis +1
Censorship resistance with short-term inclusion guarantees is an important feature of decentralized systems, missing from many state-of-the-art and even deployed consensus protocol…
Pod: An Optimal-Latency, Censorship-Free, and Accountable Generalized Consensus Layer
Orestis Alpos, Bernardo David, Jakov Mitrovski +2
This work addresses the inherent issues of high latency in blockchains and low scalability in traditional consensus protocols. We present pod, a novel notion of consensus whose fir…
Consensus Under Adversary Majority Done Right
Srivatsan Sridhar, Ertem Nusret Tas, Joachim Neu +2
A specter is haunting consensus protocols--the specter of adversary majority. Dolev and Strong in 1983 showed an early possibility for up to 99% adversaries. Yet, other works show…
Better Safe than Sorry: Recovering after Adversarial Majority
Srivatsan Sridhar, Dionysis Zindros, David Tse
The security of blockchain protocols is a combination of two properties: safety and liveness. It is well known that no blockchain protocol can provide both to sleepy (intermittentl…
Proofs of Proof-of-Stake with Sublinear Complexity
Shresth Agrawal, Joachim Neu, Ertem Nusret Tas +1
Popular Ethereum wallets (like MetaMask) entrust centralized infrastructure providers (e.g., Infura) to run the consensus client logic on their behalf. As a result, these wallets a…
Light Clients for Lazy Blockchains
Ertem Nusret Tas, David Tse, Lei Yang +1
Lazy blockchains decouple consensus from transaction verification and execution to increase throughput. Although they can contain invalid transactions (e.g., double spends) as a re…
Cryptocurrency Egalitarianism: A Quantitative Approach
Dimitris Karakostas, Aggelos Kiayias, Christos Nasikas +1
Since the invention of Bitcoin one decade ago, numerous cryptocurrencies have sprung into existence. Among these, proof-of-work is the most common mechanism for achieving consensus…
Structure and Content of the Visible Darknet
Georgia Avarikioti, Roman Brunner, Aggelos Kiayias +2
In this paper, we analyze the topology and the content found on the "darknet", the set of websites accessible via Tor. We created a darknet spider and crawled the darknet starting…