In the age of generative artificial intelligence, ensuring the provenance and authenticity of digital images has emerged as a critical challenge. The Coalition for Content Provenance and Authenticity (C2PA) introduced a signature scheme to address this issue, but it relies on trust when images are …

Central banks worldwide are exploring the use of blockchain technology to issue and manage digital versions of fiat currencies, known as Central Bank Digital Currencies (CBDCs). However, this endeavor faces significant challenges. While most blockchain systems lack robust privacy protections, those …