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We study long-term equilibria that arise in the token monetary policy, or tokenomics, design of proof-of-stake (PoS) blockchain systems that engage utility maximizing users and validators. Validators are system maintainers who get rewarded…

Computer Science and Game Theory · Computer Science 2025-02-13 Aggelos Kiayias , Philip Lazos , Paolo Penna

Majority vote is a basic method for amplifying correct outcomes that is widely used in computer science and beyond. While it can amplify the correctness of a quantum device with classical output, the analogous procedure for quantum output…

Quantum Physics · Physics 2022-11-22 Harry Buhrman , Noah Linden , Laura Mančinska , Ashley Montanaro , Maris Ozols

Blockchain or Distributed Ledger Technology is a disruptive technology that provides the infrastructure for developing decentralized applications enabling the implementation of novel business models even in traditionally centralized…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-03-22 Claudia Pop , Tudor Cioara , Ionut Anghel , Marcel Antal , Ioan Salomie

Bitcoin rise has put blockchain technology into the mainstream, amplifying its potential and broad utility. While Bitcoin has become incredibly famous, its transaction rate has not match such a corresponding increase. It still takes…

Cryptography and Security · Computer Science 2024-06-21 Han Song , Zhongche Qu , Yihao Wei

Blockchain systems come with a promise of decentralization that often stumbles on a roadblock when key decisions about modifying the software codebase need to be made. This is attested by the fact that both of the two major…

Cryptography and Security · Computer Science 2023-01-19 Aggelos Kiayias , Philip Lazos

In the second decade of the 21st century, blockchain definitely became one of the most trending computational technologies. This research aims to question the feasibility and suitability of using blockchain technology within e-voting…

Cryptography and Security · Computer Science 2020-02-19 Umut Can Cabuk , Eylul Adiguzel , Enis Karaarslan

Blockchain eliminates the need for trusted third-party intermediaries in business by enabling decentralised architecture design in software applications. However, the vulnerabilities in on-chain autonomous decision-makings and cumbersome…

Software Engineering · Computer Science 2022-06-03 Yue Liu , Qinghua Lu , Guangsheng Yu , Hye-Young Paik , Liming Zhu

Trust models are essential components of networks of any nature, as they refer to confidence frameworks to evaluate and verify if their participants act reliably and fairly. They are necessary to any social, organizational, or computer…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-02-11 Angelo Vera-Rivera , Ekram Hossain

Ensuring security and integrity of elections constitutes an important challenge with wide-ranging societal implications. Classically, security guarantees can be ensured based on computational complexity, which may be challenged by quantum…

Quadratic Surveys (QSs) elicit more accurate preferences than traditional methods like Likert-scale surveys. However, the cognitive load associated with QSs has hindered their adoption in digital surveys for collective decision-making. We…

Human-Computer Interaction · Computer Science 2025-05-19 Ti-Chung Cheng , Yutong Zhang , Yi-Hung Chou , Vinay Koshy , Tiffany Wenting Li , Karrie Karahalios , Hari Sundaram

Voting is a primary democratic activity through which voters select representatives or approve policies. Conventional paper ballot elections have several drawbacks that might compromise the fairness, effectiveness, and accessibility of the…

Cryptography and Security · Computer Science 2026-05-05 Vikas Srivastava , Debasish Roy , Sihem Mesnager , Nibedita Kundu , Sumit Kumar Debnath , Sourav Mukhopadhyay

We review probabilistic models known as majority dynamics (also known as threshold Voter Models) and discuss their possible applications for achieving consensus in cryptocurrency systems. In particular, we show that using this approach…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-09-13 Serguei Popov , Sebastian Müller

Voting methods weighted by stakes are the fundamental governance paradigm in Proof-of-Stake (PoS) blockchains. Such a paradigm is known to be prone to power distortions: a few users possessing large stakes may completely control decision…

Artificial Intelligence · Computer Science 2026-05-20 Yuzhe Zhang , Manvir Schneider , Qin Wang , Davide Grossi

This paper explores the utilization of blockchain token voting technology in student course selection systems. The current course selection systems face various issues, which can be mitigated through the implementation of blockchain…

Computers and Society · Computer Science 2024-04-23 Tiansu Hu , Yuzhao Song , Linjing Zhang , Xiaoya Zhou

Blockchain, also coined as decentralized AI, has the potential to empower AI to be more trustworthy by creating a decentralized trust of privacy, security, and audibility. However, systematic studies on the design principle of blockchain as…

Cryptography and Security · Computer Science 2023-01-18 Luyao Sunshine Zhang

Blockchain has been widely deployed in various sectors, such as finance, education, and public services. Since blockchain runs as an immutable distributed ledger, it has decentralized mechanisms with persistency, anonymity, and…

Cryptography and Security · Computer Science 2021-11-30 Qian Wei , Bingzhe Li , Wanli Chang , Zhiping Jia , Zhaoyan Shen , Zili Shao

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

Discrete-variable (DV) and continuous-variable (CV) schemes constitute the two major families of quantum key distribution (QKD) protocols. Unfortunately, since the setup elements required by these schemes are quite different, making a fair…

Quantum Physics · Physics 2023-12-05 Mikolaj Lasota , Olena Kovalenko , Vladyslav C. Usenko

In this paper, we provide an overview of the recent work in the quantum finance realm from various perspectives. The applications in consideration are Portfolio Optimization, Fraud Detection, and Monte Carlo methods for derivative pricing…

Cryptography and Security · Computer Science 2023-07-04 Abha Naik , Esra Yeniaras , Gerhard Hellstern , Grishma Prasad , Sanjay Kumar Lalta Prasad Vishwakarma

Many of the key enabling technologies of the fifth-generation (5G), such as network slicing, spectrum sharing, and federated learning, rely on a centralized authority. This may lead to pitfalls in terms of security or single point of…

Networking and Internet Architecture · Computer Science 2022-06-23 Shiva Kazemi Taskou , Mehdi Rasti , Pedro H. J. Nardelli