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 "securing majority attack in blockchain using machine learning and algorithmic game theory a proof of work"):
  Abstract: Recently we could see several institutions coming together to create consortium based blockchain networks such as Hyperledger. Although for applications of blockchain such as Bitcoin, Litcoin, etc. the majority-attack might not be a great threat but for consortium based blockchain networks where we could see several institutions such as public, private, government, etc. are collaborating, the majority-attack might just prove to be a prevalent threat if collusion among these institutions takes place. This paper proposes a methodology where we can use intelligent software agents to monitor the activity of stakeholders in the blockchain networks to detect anomaly such as collusion, using supervised machine learning algorithm and algorithmic game theory and stop the majority-attack from taking place.

Includes members:
  Member "confidential encrypted data hiding and retrieval using qr authentication system":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "mat cnn sopc motionless analysis of traffic using convolutional neural networks on system on a programmable chip")
  Member "mat cnn sopc motionless analysis of traffic using convolutional neural networks on system on a programmable chip":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "tmav temporal motionless analysis of video using cnn in mpsoc")
  Member "analysis of hashrate based double spending":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "joint time scheduling and transaction fee selection in blockchain based rf powered backscatter cognitive radio network")
  Member "on the longest chain rule and programmed self destruction of crypto currencies":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "a survey on consensus mechanisms and mining strategy management in blockchain networks")
  Member "majority is not enough bitcoin mining is vulnerable":
    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 "sd eqr a new technique to use qr codestm in cryptography":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "mat cnn sopc motionless analysis of traffic using convolutional neural networks on system on a programmable chip")
  Member "sd ree a cryptographic method to exclude repetition from a message":
    also connected through other hyperedges:
      (none)

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)