human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "sok tools for game theoretic models of security for cryptocurrencies"):
  Abstract: Cryptocurrencies have garnered much attention in recent years, both from the academic community and industry. One interesting aspect of cryptocurrencies is their explicit consideration of incentives at the protocol level. Understanding how to incorporate this into the models used to design cryptocurrencies has motivated a large body of work, yet many open problems still exist and current systems rarely deal with incentive related problems well. This issue arises due to the gap between Cryptography and Distributed Systems security, which deals with traditional security problems that ignore the explicit consideration of incentives, and Game Theory, which deals best with situations involving incentives. With this work, we aim to offer a systematization of the work that relates to this problem, considering papers that blend Game Theory with Cryptography or Distributed systems and discussing how they can be related. This gives an overview of the available tools, and we look at their (potential) use in practice, in the context of existing blockchain based systems that have been proposed or implemented.

Includes members:
  Member "oceanic games centralization risks and incentives in blockchain mining":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "double spend counterattacks threat of retaliation in proof of work systems")
  Member "a survey on consensus mechanisms and mining strategy management in blockchain networks":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "blockchain consensus algorithms a survey")
  Member "selfish mining in ethereum":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "a survey on ethereum systems security vulnerabilities attacks and defenses")
  Member "impossibility of full decentralization in permissionless blockchains":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "comparison of decentralization in dpos and pow blockchains")
  Member "squirrl automating attack discovery on blockchain incentive mechanisms with deep reinforcement learning":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "on the convergence of artificial intelligence and distributed ledger technology a scoping review and future research agenda")
  Member "an axiomatic approach to block rewards":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "heb hybrid expenditure blockchain")
  Member "reward sharing schemes for stake pools":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "a survey on applications of game theory in blockchain")
  Member "compounding of wealth in proof of stake cryptocurrencies":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "presto a systematic framework for blockchain consensus protocols")

Question: Please tell me which class the source paper 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.CR(Cryptography and Security)