Rohrer, EliasLaß, Jann-FrederikTschorsch, Florian2019-04-092019-04-092017978-3-319-67815-3978-3-319-67816-00302-9743https://depositonce.tu-berlin.de/handle/11303/9304http://dx.doi.org/10.14279/depositonce-8377Payment channel networks use off-chain transactions to provide virtually arbitrary transaction rates. In this paper, we provide a new perspective on payment channels and consider them as a flow network. We propose an extended push-relabel algorithm to find payment flows in a payment channel network. Our algorithm enables a distributed and concurrent execution without violating capacity constraints. To this end, we introduce the concept of capacity locking. We prove that flows are valid and present first results.en004 Datenverarbeitung; Informatikpayment channelflow networksecurityConference Object1611-3349