After the success of the Bitcoin blockchain, came several cryptocurrencies and blockchain
solutions in the last decade. Nonetheless, Blockchain-based systems still suffer from low …

Despite the great success of blockchain systems in recent years, blockchains still struggle to
provide the same level of latency and throughput as centralized financial systems. The core …

Tremendous growth in cryptocurrency usage is exposing the inherent scalability issues with
permissionless blockchain technology. Payment-channel networks (PCNs) have emerged …

Bitcoin, Ethereum and other blockchain-based cryptocurrencies, as deployed today, cannot
support more than several transactions per second. Off-chain payment channels, a “layer 2” …

One of the fundamental challenges that hinder further adaption of decentralized
cryptocurrencies is scalability. Because current cryptocurrencies require that all transactions …

Blockchains, in general, and cryptocurrencies such as Bitcoin, in particular, are realized
using distributed systems and hence critically rely on the performance and security of the …

Payment channels emerged recently as an efficient method for performing cheap
micropayments in cryptocurrencies. In contrast to traditional on-chain transactions, payment …

Despite growing adoption of cryptocurrencies, making fast payments at scale remains a
challenge. Payment channel networks (PCNs) such as the Lightning Network have emerged …

Payment channel networks (PCNs) have emerged as a leading solution to address the
scalability problem of blockchain-based cryptocurrencies. Within a PCN, two parties can …

The Lightning Network is the most widely used payment channel network (PCN) to date,
making it an attractive attack surface for adversaries. In this paper, we analyze the Lightning …