Public institutions and companies typically employ physical credentials (such as passports,
social security cards, and employee badges) to identify individuals. Individuals can choose …

This position paper discusses the challenges of blockchain applications in businesses and
the public sector related to an excessive degree of transparency. We first point out the types …

Global initiatives on climate protection and national sustainability policies are accelerating
the replacement of fossil fuels with renewable energy sources. Many electricity suppliers are …

Ticket fraud and ticket scalping activities often cause high costs as well as trust concerns for
fans buying event tickets, especially in the secondary ticketing market. To address these …

Today, digital identity management for individuals is either inconvenient and error-prone or
creates undesirable lock-in effects and violates privacy and security expectations. These …

Today's systems for digital identity management exhibit critical security, efficiency, and
privacy issues. A new paradigm, called Self-Sovereign Identity (SSI), addresses these …

[en] Society's accelerating digital transformation during the COVID-19 pandemic highlighted
clearly that the Internet lacks a secure, efficient, and privacy-oriented model for identity. Self …

To the editor—Under the von der Leyen presidency, the European Commission has made
digital sovereignty a strategic priority 1. A recent element in this digital sovereignty strategy …

Blockchain technology is essentially a decentralized database maintained by relevant
parties and has been widely used in various scenarios such as logistics and finance. In …

Fragmentation and limited accessibility of charging infrastructure impede the adoption of
electric vehicles. To improve the availability of charging infrastructure independent of …