Scaling decentralized blockchains has been in the spotlight of the blockchain research
community due to the immediate consequences on the widespread adoption of …

Payment channels have been proposed as a way to improve the scalability of blockchains
such as Bitcoin. However, payment channel protocols require that participating parties watch …

Online commercial activities are becoming more and more important and with it, modern
payment systems are becoming fundamental as well. When a buyer and a seller engage in …

The advent of blockchains has expanded the horizon of possibilities to novel decentralised
applications and protocols that were not possible before. Designing and building such …

Permissionless cryptocurrencies such as Bitcoin enable se-cure payments in a
decentralized, trustless environment. Trans-actions are verified through a consensus …

As the Bitcoin mining landscape becomes more competitive, analyzing potential attacks
under the assumption of rational miners becomes increasingly relevant. In the rational …

Payment channels (PC) are a promising solution to the scalability issue of cryptocurrencies,
allowing users to perform the bulk of the transactions off-chain without needing to post …

Most blockchain-based cryptocurrencies suffer from a heavily limited transaction throughput,
which is a barrier to their growing adoption. Payment channel networks (PCNs) are one of …

Since the introduction of Bitcoin in 2008, cryptocurrencies have received considerable
attention; not only for their decentralized nature but also for the ability to facilitate conditional …

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