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Payment channel networks (PCNs) are viewed as one of the most promising scalability solutions for cryptocurrencies today. Roughly, PCNs are networks where each node represents a user and each directed, weighted edge represents funds…

Cryptography and Security · Computer Science 2020-10-22 Weizhao Tang , Weina Wang , Giulia Fanti , Sewoong Oh

Blockchain technology has revolutionized the way transactions are executed, but scalability remains a major challenge. Payment Channel Network (PCN), as a Layer-2 scaling solution, has been proposed to address this issue. However, skewed…

Cryptography and Security · Computer Science 2025-04-30 Minghui Xu , Wenxuan Yu , Guangyong Shang , Guangpeng Qi , Dongliang Duan , Shan Wang , Kun Li , Yue Zhang , Xiuzhen Cheng

Payment channel networks (PCNs) such as the Lightning Network offer an appealing solution to the scalability problem faced by many cryptocurrencies operating on a blockchain such as Bitcoin. However, PCNs also inherit the stringent…

Cryptography and Security · Computer Science 2022-01-20 Philipp Zabka , Klaus-Tycho Foerster , Stefan Schmid , Christian Decker

Payment channel network (PCN) is a layer-two scaling solution that enables fast off-chain transactions but does not involve on-chain transaction settlement. PCNs raise new privacy issues including balance secrecy, relationship anonymity and…

Cryptography and Security · Computer Science 2022-08-23 Wenxuan Yu , Minghui Xu , Dongxiao Yu , Xiuzhen Cheng , Qin Hu , Zehui Xiong

In a classic transactional distributed database management system (DBMS), write transactions invariably synchronize with a coordinator before final commitment. While enforcing serializability, this model has long been criticized for not…

Payment channel networks (PCNs) are a promising solution to address blockchain scalability and throughput challenges, However, the security of PCNs and their vulnerability to attacks are not sufficiently studied. In this paper, we introduce…

Cryptography and Security · Computer Science 2025-06-24 Mohammed Ababneh , Kartick Kolachala , Roopa Vishwanathan

The Bitcoin scalability problem has led to the development of off-chain financial mechanisms such as payment channel networks (PCNs) which help users process transactions of varying amounts, including micro-payment transactions, without…

Cryptography and Security · Computer Science 2023-11-30 Kartick Kolachala , Mohammed Ababneh , Roopa Vishwanathan

With the rapid development of online payment platforms, it is now possible to record massive transaction data. Clustering on transaction data significantly contributes to analyzing merchants' behavior patterns. This enables payment…

Methodology · Statistics 2023-02-17 Yingqiu Zhu , Danyang Huang , Bo Zhang

Micropayment channels are the most prominent solution to the limitation on transaction throughput in current blockchain systems. However, in practice channels are risky because participants have to be online constantly to avoid fraud, and…

Cryptography and Security · Computer Science 2018-12-03 Georgia Avarikioti , Felix Laufenberg , Jakub Sliwinski , Yuyi Wang , Roger Wattenhofer

Payment channel networks (PCNs) are a promising solution to the scalability problem of cryptocurrencies. Any two users connected by a payment channel in the network can theoretically send an unbounded number of instant, costless…

Computer Science and Game Theory · Computer Science 2023-06-29 Zeta Avarikioti , Tomasz Lizurej , Tomasz Michalak , Michelle Yeo

We consider a data aggregating wireless network where all nodes have data to send to a single destination node, the sink. We consider a linear placement of nodes with the sink at one end. The nodes communicate directly to the sink (single…

Networking and Internet Architecture · Computer Science 2013-02-14 Easwar Vivek Mangipudi , Venkatesh Ramaiyan , Srikrishna Bhashyam

Payment channel networks (PCNs) have been designed and utilized to address the scalability challenge and throughput limitation of blockchains. Routing is a core problem of PCNs. An ideal PCN routing method needs to achieve 1) high…

Networking and Internet Architecture · Computer Science 2021-09-27 Xiaoxue Zhang , Shouqian Shi , Chen Qian

Payment channel networks (PCN) are used in cryptocurrencies to enhance the performance and scalability of off-chain transactions. Except for opening and closing of a payment channel, no other transaction requests accepted by a PCN are…

Cryptography and Security · Computer Science 2020-02-13 Subhra Mazumdar , Sushmita Ruj , Ram Govind Singh , Arindam Pal

The purpose of a wireless sensor network (WSN) is to provide the users with access to the information of interest from data gathered by spatially distributed sensors. Generally the users require only certain aggregate functions of this…

Cryptography and Security · Computer Science 2021-09-14 Jaydip Sen

Receivable financing is the process whereby cash is advanced to firms against receivables their customers have yet to pay: a receivable can be sold to a funder, which immediately gives the firm cash in return for a small percentage of the…

Data Structures and Algorithms · Computer Science 2020-06-25 Ilaria Bordino , Francesco Gullo , Giacomo Legnaro

Deep networks have gained immense popularity in Computer Vision and other fields in the past few years due to their remarkable performance on recognition/classification tasks surpassing the state-of-the art. One of the keys to their success…

Machine Learning · Computer Science 2018-06-04 Rudrasis Chakraborty , Chun-Hao Yang , Baba C. Vemuri

We develop a model of coordination and allocation of decentralized multi-sided markets, in which our theoretical analysis is promisingly optimizing the decentralized transaction packaging process at high-throughput blockchains or Web 3.0…

General Economics · Economics 2023-01-27 Yuxuan Lu , Qian Qi , Xi Chen

Money transfer is an abstraction that realizes the core of cryptocurrencies. It has been shown that, contrary to common belief, money transfer in the presence of Byzantine faults can be implemented in asynchronous networks and does not…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-07-28 Oded Naor , Idit Keidar

To improve transaction rates, many cryptocurrencies have implemented so-called ''Layer-2'' transaction protocols, where payments are routed across networks of private payment channels. However, for a given transaction, not every network…

Data Structures and Algorithms · Computer Science 2020-06-30 Ashish Goel , Geoffrey Ramseyer

The rapid evolution of the Ethereum network necessitates sophisticated techniques to ensure its robustness against potential threats and to maintain transparency. While Graph Neural Networks (GNNs) have pioneered anomaly detection in such…

Machine Learning · Computer Science 2023-10-03 Stefan Kambiz Behfar , Jon Crowcroft