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 survey on essential components of a self sovereign identity"
  Abstract: This paper provides an overview of the Self-Sovereign Identity (SSI) concept, focusing on four different components that we identified as essential to the architecture. Self-Sovereign Identity is enabled by the new development of blockchain technology. Through the trustless, decentralised database that is provided by a blockchain, classic Identity Management registration processes can be replaced. We start off by giving a simple overview of blockchain based SSI, introducing an architecture overview as well as relevant actors in such a system. We further distinguish two major approaches, namely the Identifier Registry Model and its extension the Claim Registry Model. Subsequently we discuss identifiers in such a system, presenting past research in the area and current approaches in SSI in the context of Zooko's Triangle. As the user of an SSI has to be linked with his digital identifier we also discuss authentication solutions. Most central to the concept of an SSI are the verifiable claims that are presented to relying parties. Resources in the field are only losely connected. We will provide a more coherent view of verifiable claims in regards to blockchain based SSI and clarify differences in the used terminology. Storage solutions for the verifiable claims, both on- and off-chain, are presented with their advantages and disadvantages.

Connected through hyperedge HE-1 (induced by source paper "mapping the interplanetary filesystem"):
  with members:
    - "eclipsing ethereum peers with false friends"
    - "ipfs content addressed versioned p2p file system"

Connected through hyperedge HE-2 (induced by source paper "quantifying transparency of machine learning systems through analysis of contributions"):
  with members:
    - "model cards for model reporting"
    - "a conceptual architecture for contractual data sharing in a decentralised environment"
    - "packaging and sharing machine learning models via the acumos ai open platform"
    - "defining the collective intelligence supply chain"
    - "stakeholders in explainable ai"
    - "badnets identifying vulnerabilities in the machine learning model supply chain"
    - "accountability of ai under the law the role of explanation"

Connected through hyperedge HE-3 (induced by source paper "foundation for genuine global identities"):
  with members:
    - "sybil resilient conductance based community growth"
    - "point foundations of e democracy"
    - "sybil resilient reality aware social choice"

Connected through hyperedge HE-4 (induced by source paper "genuine personal identifiers and mutual sureties for sybil resilient community formation"):
  with members:
    - "point foundations of e democracy"
    - "sybil resilient reality aware social choice"

Connected through hyperedge HE-5 (induced by source paper "full text search for verifiable credential metadata on distributed ledgers"):
  with members:
    - "a first look at identity management schemes on the blockchain"

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.CR(Cryptography and Security)