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Inspired by Bitcoin, many different kinds of cryptocurrencies based on blockchain technology have turned up on the market. Due to the special structure of the blockchain, it has been deemed impossible to directly trade between traditional…

Cryptography and Security · Computer Science 2020-05-08 Hangyu Tian , Kaiping Xue , Shaohua Li , Jie Xu , Jianqing Liu , Jun Zhao

A typical user interacts with many digital services nowadays, providing these services with their data. As of now, the management of privacy preferences is service-centric: Users must manage their privacy preferences according to the rules…

Cryptography and Security · Computer Science 2024-04-22 Rodrigo Falcão , Arghavan Hosseinzadeh

One of the fundamental applications for a practically useful system of money is remuneration. Information pertaining to the amount of compensation awarded to different individuals is often considered sensitive, commanding a certain degree…

Computers and Society · Computer Science 2017-03-14 S. Matthew English , Ehsan Nezhadian

A blockchain is a decentralized ledger where all transactions are recorded. For having a reliable blockchain and double-spending prevention, we need a decentralized consensus and agreement on a blockchain. Bitcoin uses proof-of-work (PoW).…

Cryptography and Security · Computer Science 2019-05-06 Siamak Solat

Bitcoin is a decentralized, pseudonymous cryptocurrency that is one of the most used digital assets to date. Its unregulated nature and inherent anonymity of users have led to a dramatic increase in its use for illicit activities. This…

Cryptography and Security · Computer Science 2019-10-16 Francesco Zola , Maria Eguimendia , Jan Lukas Bruse , Raul Orduna Urrutia

Bitcoin is the first successful decentralized global digital cash system. Its mining process requires intense computational resources, therefore its usefulness remains a disputable topic. We aim to solve three problems with Bitcoin and…

Cryptography and Security · Computer Science 2016-08-25 Alexander Chepurnoy , Mario Larangeira , Alexander Ojiganov

Remote voting has become more critical in recent years, especially after the Covid-19 outbreak. Blockchain technology and its benefits like decentralization, security, and transparency have encouraged remote voting systems to use…

Cryptography and Security · Computer Science 2022-11-10 Ceyhun Onur , Arda Yurdakul

Cryptocurrencies based on decentralized systems, especially blockchain, are gaining popularity more than ever. Freedom advocates hail blockchain technology as a breakthrough in digital privacy and internet anonymity. Unfortunately, after…

Cryptography and Security · Computer Science 2021-10-18 Amin Aghaee

This paper investigates whether Bitcoin can be regarded as a decentralized autonomous organization (DAO), what insights it may offer for the broader DAO ecosystem, and how Bitcoin governance can be improved. First, a quantitative literature…

Computers and Society · Computer Science 2025-04-30 Mark C. Ballandies , Guangyao Li , Claudio J. Tessone

A proof of the security of the Bitcoin protocol is made rigorous, and simplified in certain parts. A computational model in which an adversary can delay transmission of blocks by time $\Delta$ is considered. The protocol is generalized to…

Cryptography and Security · Computer Science 2026-04-17 Christopher Blake , Chen Feng , Xuechao Wang , Qianyu Yu

To strengthen the anonymity of Bitcoin, several centralized coin-mixing providers (mixers) such as BitcoinFog.com, BitLaundry.com, and Blockchain.info assist users to mix Bitcoins through CoinJoin transactions with multiple inputs and…

Cryptography and Security · Computer Science 2015-10-21 QingChun ShenTu , JianPing Yu

Unlike suggested during their early years of existence, Bitcoin and similar cryptocurrencies in fact offer significantly less privacy as compared to traditional banking. A myriad of privacy-enhancing extensions to those cryptocurrencies as…

Cryptography and Security · Computer Science 2022-04-21 Christiane Kuhn , Aniket Kate , Thorsten Strufe

Industry 5.0 depends on intelligence, automation, and hyperconnectivity operations for effective and sustainable human-machine collaboration. Pivotal technologies like the Internet of Things (IoT) enable this by facilitating connectivity…

Quantum Physics · Physics 2025-03-27 Utkarsh Azad , Bikash K. Behera , Houbing Song , Ahmed Farouk

Quantum voting protocols aim to offer ballot secrecy and publicly verifiable tallies using physical guarantees from quantum mechanics, rather than relying solely on computational hardness. This article surveys whether such quantum voting…

Quantum Physics · Physics 2026-01-27 Nitin Jha , Abhishek Parakh

In traditional access control policies, every access granted and administrative account introduces an additional vulnerability, as a corruption of a high-privilege user can compromise several sensitive files. Privocracy is an access control…

Cryptography and Security · Computer Science 2026-02-03 Pedro Camponês , Hugo Pereira , Adrian Persaud , Kevin Gallagher , Santiago Torres-Arias

This paper investigates whether Bittensor can be considered the Bitcoin of decentralized Artificial Intelligence by directly comparing its tokenomics, decentralization properties, consensus mechanism, and incentive structure against those…

Cryptography and Security · Computer Science 2025-07-08 Elizabeth Lui , Jiahao Sun

In this literature review, we first briefly provide an introduction on the privacy aspect of blockchain systems and why it is a difficult quality to achieve, especially using traditional methods. Next, we go over a wide range of different…

Cryptography and Security · Computer Science 2018-09-28 Jad Wahab

Decentralised organisations use blockchains as a basis for governance: they use on-chain transactions to allocate voting weight, publish proposals, cast votes, and enact the results. However, blockchain-based governance structures have…

Computer Science and Game Theory · Computer Science 2023-11-30 Thomas Lloyd , Daire O'Broin , Martin Harrigan

Bitcoin is a popular digital currency for online payments, realized as a decentralized peer-to-peer electronic cash system. Bitcoin keeps a ledger of all transactions; the majority of the participants decides on the correct ledger. Since…

Logic in Computer Science · Computer Science 2015-11-16 Kaylash Chaudhary , Ansgar Fehnker , Jaco van de Pol , Marielle Stoelinga

There is growing interest in providing programmatic access to the value locked in Bitcoin, which famously offers limited programmability itself. Various approaches have been put forth in recent years, with the vast majority of proposed…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-30 Ryan Croote , Islam El-Ashi , Thomas Locher , Yvonne-Anne Pignolet
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