Clara Schneidewind
Max Planck Institute for Security and Privacy, Bochum

Causal and counterfactual views of missing data models
(English)

Kolloquiumsvortrag – Sonderforschungsbereich 876 "Verfügbarkeit von Information durch Analyse unter Ressourcenbeschränkung"

Donnerstag, 01.12.2022, 16:15 – 17:45 Uhr
Hörsaal OH14/E23

Gastgeber: Prof. Dr. Katharina Morik

Zusammenfassung
Modern cryptocurrencies, which are based on a public permissionless blockchain (such as Bitcoin), face tremendous scalability issues: With their broader adoption, conducting (financial) transactions within these systems becomes slow, costly, and resource-intensive. The source of these issues lies in the proof-of-work consensus mechanism that - by design - limits the throughput of transactions in a blockchain-based cryptocurrency. In the last years, several different approaches emerged to improve blockchain scalability. Broadly, these approaches can be categorized into solutions that aim at changing the underlying consensus mechanism (so-called layer-one solutions), and such solutions that aim to minimize the usage of the expensive blockchain consensus by off-loading blockchain computation to cryptographic protocols operating on top of the blockchain (so-called layer-two solutions). In this talk, I will overview the different approaches to improving blockchain scalability and discuss in more detail the workings of layer-two solutions, such as payment channels and payment channel networks.