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 "blockchain and the future of the internet a comprehensive review"):
  Abstract: Blockchain is challenging the status quo of the central trust infrastructure currently prevalent in the Internet towards a design principle that is underscored by decentralization and transparency. In ideal terms, blockchain advocates a decentralized, transparent, and more democratic version of the Internet. Essentially being a trusted and decentralized database, blockchain finds its applications in fields as varied as the energy sector, forestry, fisheries, mining, material recycling, air pollution monitoring, supply chain management, and their associated operations. In this paper, we present a survey of blockchain-based network applications. Our goal is to cover the evolution of blockchain-based systems that are trying to bring in a renaissance in the existing, mostly centralized, space of network applications. While reimagining the space with blockchain, we highlight various common challenges, pitfalls, and shortcomings that can occur. Our aim is to make this work as a guiding reference manual for someone interested in shifting towards a blockchain-based solution for one's existing use case or automating one from the ground up.

Includes members:
  Member "applications of blockchain technology beyond cryptocurrency":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "blockchain enabled smart contract based applications deficiencies with the software development life cycle models")
  Member "an experiment in distributed internet address management using blockchains":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "a taxonomic approach to understanding emerging blockchain identity management systems")
  Member "betrayal distrust and rationality smart counter collusion contracts for verifiable cloud computing":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "an overview on smart contracts challenges advances and platforms")
  Member "when the cookie meets the blockchain privacy risks of web payments via cryptocurrencies":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "sok blockchain technology and its potential use cases")
  Member "securing vehicle to vehicle communications using blockchain through visible light and acoustic side channels":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "blockchain for the internet of things present and future")
  Member "blockchain in internet of things challenges and solutions":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "security privacy in iot using machine learning blockchain threats countermeasures")
  Member "understanding modern banking ledgers through blockchain technologies future of transaction processing and smart contracts on the internet of money":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "security analysis methods on ethereum smart contract vulnerabilities a survey")
  Member "online social networks threats and solutions":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "a survey on the security of pervasive online social networks posns")

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)