Background: In recent years, blockchain technology has attracted considerable attention. It records cryptographic …, blockchain is believed to resist fraud and hacking. Results: This work explores the types of fraud and malicious activities that … can be prevented by blockchain technology and identifies attacks to which blockchain remains vulnerable. Conclusions: This …

In the blockchain world, proof-of-work is the dominant protocol mechanism that determines the consensus of the ledger …. The hashrate, a measure of the computational power directed toward securing a blockchain through proof-of-work consensus … the security outcome of the Bitcoin blockchain. We use vector error correction modeling to analyze the endogenous …

blockchain engineers and researchers. We introduce a new system which could enable all market participants in the securitization …

and applications as promotional platforms, biometrics has the important role of strengthening the identification of such … applications for security. However, users still have privacy and trust concerns about biometrics. Previous studies have …

violations based on their tokens' smart contract code. We adapted prior works on detecting specifc types of securities violations … across Ethereum by building classifers based on features extracted from DeFi projects' tokens' smart contract code …

differentiating the subjective fraud from objective fraud. Then it discusses the effectiveness of blockchain technology in objective … of blockchain-based reputation systems in each type of rating fraud. Results: The detection of fraudulent raters is not … blockchain-based reputation systems under two attack goals: ballot-stuffing and bad-mouthing, and various attack models including …

As an emerging technology, blockchain has recently gained attention in both aca‑ demic and economic fields, but its … study determines the critical factors affecting blockchain adoption from the organizational perspective in the banking … alternatives to blockchain as ranked by the EDAS method. According to the ranking results, we identify the best preference among …

Blockchain technology is a core, underlying technology with promising application prospects in the banking industry. On … systems in banks, thus upgrading and transforming them. Blockchain applications also promote the formation of “multi …