human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "brick asynchronous state channels"
  Abstract: Off-chain (Layer 2) protocols are a promising solution to the scalability and privacy challenges of blockchain systems. In off-chain protocols, or so-called channels, the core idea is that state changes between two parties in consensus need not be transparently published. Instead, on-chain computation (acting as a trusted third party) is only required when the parties are in dispute. Current proposals, however, require a synchronous network to preserve the safety of the channel, leaking to the adversary the exact amount of time he needs to control the network in order to attack clients. This problem is exacerbated when lifting the assumption of a perfect blockchain substrate, as low chain-quality (i.e. censorship probability) or congestion can break the assumption that dispute resolution transactions will appear on-chain on-time even if the network is perfect. In this paper, we introduce Brick, the first off-chain construction that remains secure under full asynchrony. The core idea is to incorporate the conflict resolution process within the off-chain channel by introducing a watchtower committee. Every state update is consistently broadcasted to the committee after approval. Hence, if a party wants to unilaterally close a channel, it can only get the committee's approval for the valid state. Furthermore, we consider the permissioned model of blockchains where the additional property of audibility might be desired for regulatory purposes and introduce Brick+ an off-chain construction that can provide auditability on top of Brick without conflicting with its privacy guarantees. We formally define the properties our state-channel construction should fulfill, prove them for Brick and Brick+, and design incentives for the committee such that honest and rational behavior align.

Connected through hyperedge HE-1 (induced by source paper "platypus a partially synchronous offchain protocol for blockchains"):
  with members:
    - "atomic commitment across blockchains"
    - "cross chain deals and adversarial commerce"
    - "evaluating the red belly blockchain"
    - "atomic cross chain swaps"

Connected through hyperedge HE-2 (induced by source paper "online payment network design"):
  with members:
    - "payment network design with fees"
    - "sprites and state channels payment networks that go faster than lightning"
    - "settling payments fast and private efficient decentralized routing for path based transactions"

Connected through hyperedge HE-3 (induced by source paper "ride the lightning the game theory of payment channels"):
  with members:
    - "payment network design with fees"
    - "a bounded budget network creation game"

Connected through hyperedge HE-4 (induced by source paper "payment networks as creation games"):
  with members:
    - "payment network design with fees"
    - "settling payments fast and private efficient decentralized routing for path based transactions"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DC(Distributed, Parallel, and Cluster Computing)