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: "likestarter a smart contract based social dao for crowdfunding"
  Abstract: Crowdfunding has become a popular form of collective funding, in which small donations or investments, made by groups of people, support the development of new projects in exchange of free products or different types of recognition. Social network sites, on the other hand, promote user cooperation and currently are at the basis of any individuals cyber-interactions. In this paper, we present LikeStarter, a blockchain-based decentralized platform that combines social interactions with crowdfunding mechanisms, allowing any user to raise funds while becoming popular in the social network. Being built over the Ethereum blockchain, LikeStarter is structured as a Decentralized Autonomous Organization (DAO), that fosters crowdfunding without the intervention of any central authority, and recognizes the active role of donors, enabling them to support artists or projects, while making profits.

Connected through hyperedge HE-1 (induced by source paper "are distributed ledger technologies ready for smart transportation systems"):
  with members:
    - "a distributed ledger based infrastructure for smart transportation system and social good"
    - "on the ethereum blockchain structure a complex networks theory perspective"
    - "orchestrating product provenance story when iota ecosystem meets the electronics supply chain space"
    - "a blockchain based flight data recorder for cloud accountability"
    - "iota feasibility and perspectives for enabling vehicular applications"
    - "blackchain scalability for resource constrained accountable vehicle to x communication"
    - "multi level simulation of internet of things on smart territories"
    - "simulation of the internet of things"

Connected through hyperedge HE-2 (induced by source paper "agent based simulation of blockchains"):
  with members:
    - "simblock a blockchain network simulator"
    - "a survey of distributed consensus protocols for blockchain networks"
    - "decentralization in bitcoin and ethereum networks"
    - "a blockchain based flight data recorder for cloud accountability"
    - "highly intensive data dissemination in complex networks"
    - "the simulation model partitioning problem an adaptive solution based on self clustering"
    - "majority is not enough bitcoin mining is vulnerable"

Connected through hyperedge HE-3 (induced by source paper "on the ethereum blockchain structure a complex networks theory perspective"):
  with members:
    - "towards blockchain enabled wireless mesh networks"
    - "a blockchain based flight data recorder for cloud accountability"
    - "towards blockchain based auditable storage and sharing of iot data"
    - "smart contract slas for dense small cell as a service"
    - "a blockchain based approach for data accountability and provenance tracking"
    - "highly intensive data dissemination in complex networks"
    - "simulation of the internet of things"

Connected through hyperedge HE-4 (induced by source paper "a distributed ledger based infrastructure for smart transportation system and social good"):
  with members:
    - "on the ethereum blockchain structure a complex networks theory perspective"
    - "idmob iot data marketplace on blockchain"
    - "a blockchain based flight data recorder for cloud accountability"
    - "towards blockchain based auditable storage and sharing of iot data"
    - "ipfs content addressed versioned p2p file system"

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.CY(Computers and Society)