The biased distribution of cryptocurrency nodes across Autonomous Systems (ASes)
increases the risk of spatial partitioning attacks, allowing an adversary to isolate nodes by …

A recent spam wave of IP addresses in the Bitcoin P2P network allowed us to estimate the
degree distribution of reachable peers. The resulting distribution indicates that about half of …

DEX, or decentralized exchange, is a prominent class of decentralized finance (DeFi)
applications on blockchains, attracting a total locked value worth tens of billions of USD …

Blockchain (BC) systems are highly distributed peer-to-peer networks that offer an
alternative to centralized services and promise robustness to coordinated attacks. However …

Major cryptocurrency networks have relied on random peering choice rules for making
connections in their peer-to-peer networks. Generally, these choices have good properties …

In Ethereum, the ledger exchanges messages along an underlying Peer-to-Peer (P2P)
network to reach consistency. Understanding the underlying network topology of Ethereum …

Strategies related to the blockchain concept of Extractable Value (MEV/BEV), such as
arbitrage, front-or back-running create an economic incentive for network nodes to reduce …

As all software, blockchain nodes are exposed to faults in their underlying execution stack.
Unstable execution environments can disrupt the availability of blockchain nodes' interfaces …

Edge computing brings a new paradigm in which the sharing of computing, storage, and
bandwidth resources as close as possible to the mobile devices or sensors generating a …

Public blockchains are the digital infrastructure that powers the multi-trillion-dollar economy
in cryptocurrencies. Understanding the security and performance of deployed blockchain …