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With the proliferation of new blockchain-based cryptocurrencies/assets and platforms that make it possible to transact across them, it becomes important to consider not just whether the transfer of coins/assets can be tracked within their…

Cryptography and Security · Computer Science 2025-10-14 Ayush Kumar , Vrizlynn L. L. Thing

With the rise of digital currency systems that rely on blockchain to ensure ledger security, the ability to perform cross-chain transactions is becoming a crucial interoperability requirement. Such transactions allow not only funds to be…

Cryptography and Security · Computer Science 2021-01-18 Rongjian Lan , Ganesha Upadhyaya , Stephen Tse , Mahdi Zamani

More than ten years ago the blockchain was acclaimed as the solution to overcome centralised trusted third parties for online payments. Through the years the crypto-movement changed and evolved, although decentralisation remained the core…

A blockchain is an append-only linked-list of blocks, which is maintained at each participating node. Each block records a set of transactions and their associated metadata. Blockchain transactions act on the identical ledger data stored at…

Databases · Computer Science 2021-08-05 Suyash Gupta , Mohammad Sadoghi

This paper presents Wrapless -- a lending protocol that enables the collateralization of bitcoins without requiring a trusted wrapping mechanism. The protocol facilitates a "loan channel" on the Bitcoin blockchain, allowing bitcoins to be…

Blockchain technology is ushering in another break-out year, the challenge of blockchain still remains to be solved. This paper analyzes the features of Bitcoin and Bitcoin-NG system based on blockchain, proposes an improved method of…

Cryptography and Security · Computer Science 2018-11-01 Jia Kan , Shangzhe Chen , Xin Huang

The Layer 2 Atomic Cross-Blockchain Function Calls protocol allows composable programming across Ethereum blockchains. It allows for inter-contract and inter-blockchain function calls that are both synchronous and atomic: if one part fails,…

Cryptography and Security · Computer Science 2020-07-02 Peter Robinson , Raghavendra Ramesh

Blockchain interoperability protocols enable cross-chain asset transfers or data retrievals between isolated chains, which are considered as the core infrastructure for Web 3.0 applications such as decentralized finance protocols. However,…

Cryptography and Security · Computer Science 2024-11-04 Yinfeng Cao , Jiannong Cao , Dongbin Bai , Long Wen , Yang Liu , Ruidong Li

Although the iterative double auction has been widely used in many different applications, one of the major problems in its current implementations is that they rely on a trusted third party to handle the auction process. This imposes the…

Cryptography and Security · Computer Science 2020-07-20 Truc D. T. Nguyen , My T. Thai

As blockchains continue to seek to scale to a larger number of nodes, the communication complexity of protocols has become a significant priority as the network can quickly become overburdened. Several schemes have attempted to address…

Information Theory · Computer Science 2023-05-11 Ilan Tennenhouse , Netanel Raviv

Since its 2009 genesis block, the Bitcoin network has processed >1.08 billion (B) transactions representing >8.72B BTC, offering rich potential for machine learning (ML); yet, its pseudonymity and obscured flow of funds inherent in its…

Machine Learning · Computer Science 2025-10-30 Vahid Jalili

Sharding is a way to address scalability problem in blockchain technologies. Ethereum, a prominent blockchain technology, has included sharding in its roadmap to increase its throughput. The plan is also to include multiple execution…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-05-19 Raghavendra Ramesh

Cross-chain technology facilitates the interoperability among isolated blockchains on which users can freely communicate and transfer values. Existing cross-chain protocols suffer from the scalability problem when processing on-chain…

Cryptography and Security · Computer Science 2022-12-15 Yihao Guo , Minghui Xu , Dongxiao Yu , Yong Yu , Rajiv Ranjan , Xiuzhen Cheng

Cross-chain transactions today remain slow, costly, and fragmented. Existing custodial exchanges expose users to counterparty and centralization risks, while non-custodial liquidity bridges suffer from capital inefficiency and slow…

Cryptography and Security · Computer Science 2025-09-08 Di Wu , Jingyu Liu , Xuechao Wang , Jian Liu , Yingjie Xue , Kui Ren , Chun Chen

Grassroots platforms aim to offer an egalitarian alternative to global platforms. Whereas global platforms can have only a single instance, grassroots platforms can have multiple instances that emerge and operate independently of each other…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-08 Ehud Shapiro

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

The necessity of blockchain systems to remain decentralised limits current solutions to blockchain governance and dynamic management, forcing a trade-off between control and decentralisation. In light of the above, this work proposes a…

Cryptography and Security · Computer Science 2025-10-10 Georgios Diamantopoulos , Nikos Tziritas , Rami Bahsoon , Georgios Theodoropoulos

Today there is considerable interest in deploying blockchains and decentralized ledger technology as a means to address the deficiencies of current financial and digital asset infrastructures. The focal point of attention in many projects…

Cryptography and Security · Computer Science 2021-10-26 Denis Avrilionis , Thomas Hardjono

For more than a century, the grid has operated in a centralized top-down fashion. However, as distributed energy resources (DERs) penetration grows, the grid edge is increasingly infused with intelligent computing and communication…

Systems and Control · Electrical Eng. & Systems 2024-08-30 Sakshi Mishra , Roohallah Khatami , Yu Christine Chen

State-of-the-art blockchain sharding solutions such as Monoxide, can cause severely imbalanced distribution of transaction (TX) workloads across all blockchain shards due to the deployment policy of their accounts. Imbalanced TX…

Cryptography and Security · Computer Science 2024-12-11 Huawei Huang , Zhaokang Yin , Qinde Chen , Guang Ye , Xiaowen Peng , Yue Lin , Zibin Zheng , Song Guo