The fusion of blockchain and artificial intelligence (AI) marks a paradigm shift in healthcare,
addressing critical challenges in securing electronic health records (EHRs), ensuring data …

Efficient data storage and query processing systems play a vital role in many different
research areas. Blockchain technology and distributed ledgers attract massive attention and …

Currently, data are often referred to as the oil of the 21st century. This comparison is not only
used to express that the resource data are just as important for the fourth industrial …

Aside from the conception of new blockchain architectures, existing blockchain optimizations
in the literature primarily focus on system or data-oriented optimizations within prevailing …

The spread of crypto-currencies globally has led to blockchain technology receiving greater
attention in recent times. This paper focuses more broadly on the uses of ledger databases …

Patients living in a digitized world can now interact with medical professionals through
online services such as chat applications, video conferencing or indirectly through …

In the era of digital transformation, supply chain management faces major challenges
induced by the lack of transparency and the evolving industry. In this context, blockchain …

Integration of diverse technologies fuels business-model transformation, evolving new
applications. Industry 4.0 utilizes emerging-technologies like IoT, AI to make next-generation …

Featured Application This work can be applied to enhancing traceability in complex supply
chains, such as those in the food, pharmaceutical, or forestry industries, where transparency …

Efficient blockchain querying is crucial for unlocking the full potential of blockchain
technology in diverse applications and enabling it to compete with traditional databases in …