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 "towards blockchain based multi agent robotic systems analysis classification and applications"):
  Abstract: Decentralization, immutability and transparency make of Blockchain one of the most innovative technology of recent years. This paper presents an overview of solutions based on Blockchain technology for multi-agent robotic systems, and provide an analysis and classification of this emerging field. The reasons for implementing Blockchain in a multi-robot network may be to increase the interaction efficiency between agents by providing more trusted information exchange, reaching a consensus in trustless conditions, assessing robot productivity or detecting performance problems, identifying intruders, allocating plans and tasks, deploying distributed solutions and joint missions. Blockchain-based applications are discussed to demonstrate how distributed ledger can be used to extend the number of research platforms and libraries for multi-agent robotic systems.

Includes members:
  Member "a reference architecture for smart and software defined buildings":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "size matters microservices research and applications")
  Member "interacting with the internet of things using smart contracts and blockchain technologies":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "oauth 2 0 authorization using blockchain based tokens")
  Member "controlling robots using artificial intelligence and a consortium blockchain":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "towards the uses of blockchain in mobile health services and applications a survey")
  Member "blockchain solutions for multi agent robotic systems related work and open questions":
    also connected through other hyperedges:
      (none)
  Member "towards the internet of robotic things analysis architecture components and challenges":
    also connected through other hyperedges:
      (none)
  Member "robochain a secure data sharing framework for human robot interaction":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "blockchain solutions for multi agent robotic systems related work and open questions")
  Member "an architecture for distributed ledger based m2m auditing for electric autonomous vehicles":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "a machine to machine framework for the charging of electric autonomous vehicles")
  Member "smart contracts for multiagent plan execution in untrusted cyber physical systems":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "blockchain solutions for multi agent robotic systems related work and open questions")

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.RO(Robotics)