Voting is a fundamental democratic activity. Many experts believe that paper balloting is the
only appropriate method to ensure everyone's right to vote. But this method is prone to errors …

Mobile crowdsensing (MCS) is an emerging data-driven paradigm that leverages the
collective intelligence of the crowd, their mobility, and the crowd-companioned smart mobile …

Blockchain technology has enabled a thriving emergent ecosystem of tools and
communities actively using decentralized systems. However, most blockchain infrastructure …

The issuing and verification of higher education certificates, including all higher education
documents, still functions in a costly and inappropriately bureaucratic manner. Blockchain …

Internet applications rely on Secure Socket Layer (SSL)/Transport Security Layer (TSL)
certifications to establish secure communication. However, the centralized nature of …

Since the introduction of the first cryptocurrency, Bitcoin, in 2008, the gain in popularity of
distributed ledger technologies (DLTs) has led to an increasing demand and, consequently …

Like most modern blockchain networks, Ethereum has relied on economic incentives to
promote honest participation in the chain's consensus. The distributed character of the …

Blockchains face many challenges in time, among which the ever-growing storage needs for
blockchains' data. In particular, Ethereum is quickly approaching the 1 TB storage limit for a …

Purpose This paper aims to analyse COVID-19 indices and blockchain features on Bitcoin
and Ethereum returns, respectively. The authors focus on the most used and owned …

Sharding technology is widely regarded as an effective way to solve blockchain scalability
limitations, such as lower throughput and longer delay time. However, sharding encounters …