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 "a hybrid formal verification system in coq for ensuring the reliability and security of ethereum based service smart contracts"):
  Abstract: This paper reports on the development of a formal symbolic process virtual machine (FSPVM) denoted as FSPVM-E for verifying the reliability and security of Ethereum-based services at the source code level of smart contracts, and a Coq proof assistant is employed for both programming the system and for proving its correctness. The current version of FSPVM-E adopts execution-verification isomorphism, which is an application extension of Curry-Howard isomorphism, as its fundamental theoretical framework to combine symbolic execution and higher-order logic theorem proving. The four primary components of FSPVM-E include a general, extensible, and reusable formal memory framework, an extensible and universal formal intermediate programming language denoted as Lolisa, which is a large subset of the Solidity programming language using generalized algebraic datatypes, the corresponding formally verified interpreter of Lolisa, denoted as FEther, and assistant tools and libraries. The self-correctness of all components is certified in Coq. Currently, FSPVM-E supports the ERC20 token standard, and can automatically and symbolically execute Ethereum-based smart contracts, scan their standard vulnerabilities, and verify their reliability and security properties with Hoare-style logic in Coq. To the best of authors' knowledge, the present work represents the first hybrid formal verification system implemented in Coq for Ethereum smart contracts that is applied at the Solidity source code level.

Includes members:
  Member "formal process virtual machine for smart contracts verification":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "security analysis methods on ethereum smart contract vulnerabilities a survey")
  Member "scilla a smart contract intermediate level language":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "albert an intermediate smart contract language for the tezos blockchain")
  Member "a semantic framework for the security analysis of ethereum smart contracts":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "ae gis shielding vulnerable smart contracts against attacks")
  Member "fether an extensible definitional interpreter for smart contract verifications in coq":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "security analysis methods on ethereum smart contract vulnerabilities a survey")
  Member "lolisa formal syntax and semantics for a subset of the solidity programming language":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "security analysis methods on ethereum smart contract vulnerabilities a survey")
  Member "a general formal memory framework in coq for verifying the properties of programs based on higher order logic theorem proving with increased automation consistency and reusability":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "fether an extensible definitional interpreter for smart contract verifications in coq")
  Member "simplicity a new language for blockchains":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "smart contract development from the perspective of developers topics and issues discussed on social media")
  Member "a survey of symbolic execution techniques":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "cbr controlled burst recording")

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.PL(Programming Languages)