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 "patterns for blockchain migration"):
  Abstract: With the rapid evolution of technological, economic, and regulatory landscapes, contemporary Blockchian platforms are all but certain to undergo major changes. Therefore, applications that rely on them will eventually need to migrate the Blockchain to remain competitive and secure, as well as to enhance the performance, cost efficiency, privacy, and regulatory compliance. However, the differences in data and smart contract representations, mode of hosting, transaction fees, and the need to preserve consistency, immutability, and data provenance introduce unique challenges over database migration. We first present a set of Blockchain migration scenarios and data fidelity levels using an illustrative example. We then derive a set of migration patterns to address those scenarios and above data management challenges. Finally, we demonstrate how the effort, cost, and risk of Blockchain migration can be minimized by choosing a suitable data fidelity level and proactive system design. Practical considerations and several research challenges are also highlighted.

Includes members:
  Member "a platform architecture for multi tenant blockchain based systems":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "the attack of the clones against proof of authority")
  Member "caterpillar a business process execution engine on the ethereum blockchain":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "a minimal core calculus for solidity contracts")

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.DC(Distributed, Parallel, and Cluster Computing)