The Bitcoin has emerged as a fascinating phenomenon in the Financial markets. Without
any central authority issuing the currency, the Bitcoin has been associated with controversy …

The COVID-19 global pandemic has disrupted business-as-usual, hence, affecting
sustained economic development across countries. However, it appears economic …

Ransomware can prevent a user from accessing a device and its files until a ransom is paid
to the attacker, most frequently in Bitcoin. With over 500 known ransomware families, it has …

In this paper, we address the problems of fraud and anomalies in the Bitcoin network. These
are common problems in e-banking and online transactions. However, as the financial …

Cryptocurrencies are distributed systems that allow exchanges of native (and non-) tokens
between participants. The availability of the complete historical bookkeeping opens up an …

This paper proposes a blockchain platform architecture for clinical trial and precision
medicine and discusses various design aspects and provides some insights in the …

What is the role of social interactions in the creation of price bubbles? Answering this
question requires obtaining collective behavioural traces generated by the activity of a large …

This paper provides a review of the literature on key matters related to the popular
cryptocurrency Bitcoin. Another key motivation of this paper is to understand the underlying …

This work presents a systemic top-down visualization of Bitcoin transaction activity to explore
dynamically generated patterns of algorithmic behavior. Bitcoin dominates the …

We study the cryptocurrency market with respect to the efficient market hypothesis.
Specifically, we are interested in testing whether the examined coins and tokens are efficient …