5 papers · 1 filter
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…
Formalization and security analysis of the Bridgeless protocol
Orestis Alpos, Oleg Fomenko, Dimitris Karakostas +2
This paper formalizes the proves the security of the Bridgeless protocol, a protocol able to bridge tokens between various chains. The Bridgeless protocol is run by a set of valida…
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…
Thetacrypt: A Distributed Service for Threshold Cryptography
Mariarosaria Barbaraci, Noah Schmid, Orestis Alpos +2
Threshold cryptography is a powerful and well-known technique with many applications to systems relying on distributed trust. It has recently emerged also as a solution to challeng…
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…