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: "a promise theory perspective on data networks"
  Abstract: Networking is undergoing a transformation throughout our industry. The shift from hardware driven products with ad hoc control to Software Defined Networks is now well underway. In this paper, we adopt the perspective of the Promise Theory to examine the current state of networking technologies so that we might see beyond specific technologies to principles for building flexible and scalable networks. Today's applications are increasingly distributed planet-wide in cloud-like hosting environments. Promise Theory's bottom-up modelling has been applied to server management for many years and lends itself to principles of self-healing, scalability and robustness.

Connected through hyperedge HE-1 (induced by source paper "spacetime entangled networks i relativity and observability of stepwise consensus"):
  with members:
    - "consensus in the age of blockchains"
    - "spacetimes with semantics"
    - "local and global trust based on the concept of promises"
    - "consensus on transaction commit"

Connected through hyperedge HE-2 (induced by source paper "spacetimes with semantics"):
  with members:
    - "on the theory of system administration"

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.NI(Networking and Internet Architecture)