On identity, transaction, and smart contract privacy on permissioned and permissionless blockchain: A comprehensive survey

W Liang, Y Liu, C Yang, S ** rapidly, and the scalability issue has
become a constraint on their practical application and development. Off-chain payment …

AuditPCH: Auditable Payment Channel Hub with Privacy Protection

Y Li, J Weng, J Lai, Y Li, J Sun, J Wu… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Anonymous Payment Channel Hub (PCH), one of the most promising layer-two solutions,
settles the scalability issue in blockchain while guaranteeing the unlinkability of transacting …

A trustworthy and untraceable centralised payment protocol for mobile payment

J Neera, X Chen, N Aslam, B Issac - ACM Transactions on Privacy and …, 2024 - dl.acm.org
Current mobile payment schemes gather detailed information about purchases customers
make. This data can then be used to infer a customer's spending behaviour, potentially …

BlindShuffler: Universal and Trustless Mixing for Confidential Transactions

C Wang, Z Ge, Y Long, X Xu, SF Sun… - Proceedings of the 19th …, 2024 - dl.acm.org
Mixing services provide unlinkability for blockchains by breaking the link between
sender/receiver identities and are highly appreciated for their compatibility with the …

Splicer: Secure Hub Placement and Deadlock-Free Routing for Payment Channel Network Scalability

L Yang, X Dong, W Wang, S Gao, Q Qu, W Tian… - arxiv preprint arxiv …, 2025 - arxiv.org
Payment channel hub (PCH) is a promising approach for payment channel networks (PCNs)
to improve efficiency by deploying robust hubs to steadily process off-chain transactions …

P2C2T: Preserving the Privacy of Cross-Chain Transfer

P Han, Z Yan, LT Yang, E Bertino - Cryptology ePrint Archive, 2024 - eprint.iacr.org
Blockchain-enabled digital currency systems have typically operated in isolation, lacking
necessary mechanisms for seamless interconnection. Consequently, transferring assets …

Sok: Payment channel networks

K Kolachala, M Ababneh… - 2024 Conference on …, 2024 - ieeexplore.ieee.org
Payment Channel Networks (PCNs) have been proposed as an alternative solution to the
scalability, throughput, and cost overhead problems associated with blockchain …