=Paper= {{Paper |id=Vol-3869/p05 |storemode=property |title=An Analysis of the State of Art of the Metaverse and Its Disruptive Impact on Services |pdfUrl=https://ceur-ws.org/Vol-3869/p05.pdf |volume=Vol-3869 |authors=Andrea Cigliano,Francesca Fallucchi,Marco Gerardi |dblpUrl=https://dblp.org/rec/conf/icyrime/CiglianoFG24a }} ==An Analysis of the State of Art of the Metaverse and Its Disruptive Impact on Services== https://ceur-ws.org/Vol-3869/p05.pdf
                         An Analysis of the State of Art of the Metaverse and Its
                         Disruptive Impact on Services
                         Andrea Cigliano1 , Francesca Fallucchi1,2 and Marco Gerardi1
                         1
                             Department of Engineering Science, Guglielmo Marconi University, 00193 Rome, Italy
                         2
                             Leibniz Institute for Educational Media, Georg Eckert Institute, 38118 Brunswick, Germany


                                            Abstract
                                            The metaverse is a virtual environment where individuals may connect with one another, partake in a variety of activities, and access
                                            digital content. It coexists with the real world and it has the potential to significantly affect daily life as well as a variety of services and
                                            applications as it develops. To understand the importance of the impacts of the metaverse in today’s society, just think of the disruptive
                                            technologies that enable it: Artificial Intelligence (AI), Extended Reality (ER), IoT, Digital Twin (DT) and Blockchain/NFT all with
                                            assistance with the availability of large, rich and structured/unstructured dataset and advanced computational models. Metaverse is
                                            cadidated (and not only) to redefine everyday life, designing activities and services/products provisioning towards increasing efficiencies,
                                            money saving and quality performance, with a big impact in everyone and helping the design and testing of next generation of internet.
                                            However, there still remain not only technical and interoperability issues but above all ethical, human, social, and cultural concerns as
                                            to the metaverse’s influence upon its prospective scope in reconstructing the quality of urban life. This paper undertakes an upper-level
                                            scientific literature review of the area of the metaverse from a broader perspective. Further, it maps the some services and the relative
                                            requirements for declinate the enabling technologies of the metaverse, and explores their contributions.

                                            Keywords
                                            Metaverse, DT: Digital Twin, ER: Extended Reality, VR: Virtual Reality, Blockchain, Nft, Quantum Computing, IOT, LLM: Large Language
                                            Model, NLP: Natural Language Model, GenI: Generative Artificial Intelligence, DH: Digital Humanity, AI: Artificial Intelligence



                         1. Introduction                                                                                                    as you" [7]. Putting the various definitions as a common
                                                                                                                                            factor, metaverse means a collective, persistent and interac-
                         Recent investments and disinvestments by big tech and                                                              tive parallel reality created by synthesizing virtual worlds
                         some large companies in the metaverse have been seen as a                                                          in which people can use personal avatars to work, play and
                         vital sign that the internet will transform and take on a new                                                      communicate with each other [8]. For this research we con-
                         dimension. After the Covid-19 pandemic, people have to                                                             ducted a literature search on a variety of online scientific
                         stay at home and perform many activities in digital environ-                                                       database sources and analyzed which services in real life
                         ments, which has accelerated the digitalization process. The                                                       could be impacted by the metaverse is treated in the fields
                         recent energy crisis has accelerated the process of develop-                                                       of iot, energy, smart cities and other related collateral areas.
                         ing alternative energy sources or more sustainable distribu-                                                       Every service has requirements in term of QOS (Quality Of
                         tion and consumption [1, 2, 3, 4]. The new internet design                                                         Services) [9] . These requirements and relative QOS have
                         is planned to be developed to support a permanent digital                                                          enabling technologies associated for the respect of its.
                         world where thousands and millions of people can act simul-
                         taneously and switch between different platforms. However,
                         problems such as the management of energy resources and
                                                                                                                                            1.1. Contributions
                         equipment products that will support the necessary infras-                                                         We will describe metaverse current background, which helps
                         tructure need to be overcome. In this context, this paper                                                          us explain why is a hot topic just now, despite having being
                         intends to give is the state of the art of the development of                                                      around for long time. We highlight current overview on
                         the metaverse, with particular regard to the technologies                                                          scientific pubblications on metaverse. We will further high-
                         used and the academic publications carried out in the re-                                                          light why, this time, the context is radically different from
                         search areas related to Metaverse, Energy and Smart Cities.                                                        what we experienced in the past: that is, why the upcoming
                         As a first step is a brief conceptualization and definition of                                                     metaverse instances could represent something semanti-
                         the Metaverse. Basically it is a combination of the prefix                                                         cally different from what we have seen in the technology
                         "meta" (meaning beyond) and the suffix "verso" (short for                                                          domain until now (an approximated answer: exponential
                         Universe), if we wanted to define it, it is a composite world                                                      technology growth; unprecedented capabilities in data gen-
                         with a coherent value system and an independent economic                                                           eration, collection, and analysis; and, convergence of the
                         system linked to the world physicist. The term metaverse                                                           cyber-physical worlds). Based on the introduced founda-
                         was first created by Neal Stephenson in his science fiction                                                        tional material we develop our vision of the metaverse, high-
                         novel Snow Crash in 1992. Herrman and Browning define it                                                           lighting the metaverse-enabling technologies in particular
                         as “a fully realized digital world that exists beyond the ana-                                                     on developing energy and smart city services. Finally, in our
                         log one we live in” [5]; Morgado explained it as "a plethora                                                       discussion we argument the thesis that the exposed threats
                         of interconnected world" [6]. Meta Platforms, Inc. Bosworth                                                        and the envisaged impacts generated by the development of
                         and Clegg (2021) describe it most simply: "The metaverse                                                           the metaverse call for an interdisciplinary approach where
                         is a set of virtual spaces where you can create and explore                                                        computer science and engineering are critical.
                         with other people who are not in the same physical space
                                                                                                                                            1.2. Sections
                          ICYRIME 2024: 9th International Conference of Yearly Reports on Infor-
                          matics, Mathematics, and Engineering. Catania, July 29-August 1, 2024                                             The remainder of the paper is organized as follows. In Sec-
                          $ a.cigliano@unimarconi.it (A. Cigliano); f.fallucchi@unimarconi.it                                               tion II we revise the method utilized and some background
                          (F. Fallucchi); m.gerardi@unimarconi.it (M. Gerardi)                                                              information and related work in the field. In Section III,
                                        © 2024 Copyright for this paper by its authors. Use permitted under Creative Commons License
                                        Attribution 4.0 International (CC BY 4.0).



CEUR
                  ceur-ws.org
Workshop      ISSN 1613-0073
Proceedings
                                                                                                                                       38
Andrea Cigliano et al. CEUR Workshop Proceedings                                                                                38–46



we discuss the current istances on metaverse or more cor-                     • Training and education: Professionals and students
rectly Metaverses, with a specific reference to the many                        can participate in training and education sessions
technologies correlated. In Section IV, based on the state                      in virtual environments, similar to a physical class-
of play and the introduced guiding principles, we provide                       room;
our analysis of what are the most stringent criticalities of                  • Conferences and Meetings: Businesses can host vir-
the metaverse, also highlighting broad—in scope, depth, and                     tual conferences and meetings in metaverse envi-
breadth—research directions in energy and smart city. Fi-                       ronments, which offer a more immersive experience
nally, in Section V we provide our conclusions.                                 than a standard video conference;
                                                                              • Shopping and entertainment: Consumers can ex-
                                                                                plore virtual stores, view and purchase products in
2. Related Works                                                                3D, and participate in entertainment events such as
The services impacted by the metaverse are analyzed and                         concerts and shows;
treated in many real-world scenarios such as widely dis-                      • Arts and Culture: Visitors can explore virtual mu-
tributed cloud sevices and solutions[10, 11], as well as health-                seums and galleries, view 3D artwork, and interact
care [12, 13, 14], gaming [15], education [16, 17, 18], cultural-               with other visitors.
heritage [19, 20], smart city [21], etc. Technologies involved           Below a list of Metaverse services and a typology of classifi-
as metaverse enabler have been largely treated in these do-              cation:
mains of services and frameworks are proposed [22, 23]. In
these studies, AI [24, 25, 26] is one of main pillar to build
the metaverse. The other one is Digital Twin [27, 22], in                4. Metaverse services and
the metaverse every real single entity, concept, or operation               implementation requirements
should be involved in the created 3D environment. Thus, a
huge amount of various types of data are highly needed in                In Table 3 it is reported the requirements of the Metaverse
such a system, including Internet of Things (IoT) collected              typology.
from various locations, devices and in an immersive while
being accessible through XR, including augumented reality
(AR), virtual reality (VR), and mixed reality (MR) [22]. The             5. Metaverse architecture and
technologies that allow human interaction with the meta-                    Metaverse-enabling technologies
verse are mainly concentrated on case studies that look at
healthcare and gaming [28, 29, 30, 31, 32]. Metaverse per-                  and requirements coverage
spectives cannot be dissociated from a pervasive technology
                                                                         Since its first appearance, the concept of Metaverse is still
like AI in fields like education and work [16, 33, 24]. The
                                                                         evolving with various descriptions, such as a second life
research works on blockchain technology and the metaverse
                                                                         [42], 3D virtual worlds [43], and life-logging [44]. Com-
is certainly the combination that has a high number of re-
                                                                         monly, the Metaverse is regarded as a fully immersive, hy-
search works on the use of cryptocurrencies and NFTs as
                                                                         per spatiotemporal, and self-sustaining virtual shared space
means of payment and beyond [34, 7, 35, 36, 37, 38, 39], also
                                                                         blending the ternary physical, human, and digital worlds
including specific sectors, e.g. automotive [40].
                                                                         [45]. Metaverse is recognized as an evolving paradigm of
   In this paper draws attention to metaverse state-of-art
                                                                         the next-generation Internet and the evolution of Social
and contributes to the answer to the research questions of
                                                                         Media and the next mobile Internet revolutions [45], where
recurring research contexts on metaverse, namely:
                                                                         users can live as digital natives and experience an alterna-
     • What is the Metaverse, and what are the supporting                tive life in virtuality. The Metaverse integrates a variety
       technologies based on existing papers?                            of enabling technologies [47, 34, 48], including the Non-
     • How Metaverse has been detailed in research along                 Terrestrial Networks (NTNs) [50]. In particular, digital twin
       with other keywords?                                              produces a mirror image of the real world, Virtual Reality
     • Are there constraints in the existing Metaverse re-               (VR) and Augmented Reality (AR) provide immersive 3D
       search which require further research?                            experience, 5G and beyond offer ultra-high reliable and ul-
                                                                         tralow latency connections for massive Metaverse devices
The metaverse aims to be pervasive in everyone’s everyday                as wearable. It provides an immersive experience, generates
life, but there will be services that will be impacted more              a mirror image of the real world based on Digital Twin tech-
than others that will lead to real disruption or "metaverse              nology and Avatars, and builds an economic system based
service disruption" (MSD). Below are some services that will             on Blockchain technology. The Metaverse is comparable as
undergo a profound transformation with the growth of the                 a new type of social form, that includes economic systems,
metaverse .                                                              cultural systems, and legal systems, which are closely re-
                                                                         lated to reality, but have their own characteristics. Hyper
                                                                         Spatiotemporality refers to the Metaverse, a virtual world
3. Metaverse service disruption                                          parallel to the real world. It breaks the boundaries of time
                                                                         and space and offers users an open, free and immersive ex-
Already nowadays the metaverse is used in many fields, but
                                                                         perience. The pervasiveness inherent in the Metaverse can
the services that will be impacted in a disruption will be:
                                                                         be seen in recent sci-fi movies/series such as Avatar(2009,
     • Games and Virtual Reality: Players can immerse                    2022), Ready Player One (2018), The Peripheral (2022) and
       themselves in 3D virtual worlds and interact with                 others. The Metaverse is the tight integration, interaction,
       other players in real time;                                       and intertwining of the real and virtual worlds that requires
                                                                         the integration of a variety of new technologies to create
                                                                         a novel Internet application and social form. The method



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Andrea Cigliano et al. CEUR Workshop Proceedings                                                                                    38–46


                                                   Metaverse related work detailed list
       Year        Publication                     Brief description
       2022        Y. Wang et al. [41]             A comprehensive survey of the fundamentals, security, and privacy of meta-
                                                   verse. Specifically, an analysis on distributed metaverse architecture and its
                                                   key characteristics with ternary-world interactions.
       2007        J. Sanchez [42]                 An Interactive Qualitative analysis of the user experience in Second Life, an
                                                   online Metaverse, in an undergraduate literature class. A focus group of
                                                   eighteen students produced a systems model including ten affinities with one
                                                   primary driver and one primary outcome.
       2013        J. D. N. Dionisio et al. [43]   Moving from a set of independent virtual worlds to an integrated network
                                                   of 3D virtual worlds or Metaverse rests on progress in four areas: immersive
                                                   realism, ubiquity of access and identity, interoperability, and scalability.
       2019        A. Bruun et al. [44]            Research in the wild has emerged in HCI as a way of studying participant
                                                   experiences in natural environments. Also, lifelogging tools such as physio-
                                                   logical sensors have become more feasible for gathering data continuously in
                                                   the wild.
       2021        H. Ning et al. [45]             The development status of Metaverse, from the five perspectives of network
                                                   infrastructure, management technology, basic common technology, virtual
                                                   reality object connection, and virtual reality convergence, it introduces the
                                                   technical framework of Metaverse.
       2021        D. Grider et al. [46]           The Metaverse is still emerging, but many key components have started to
                                                   take shape and are revolutionizing everything from e-commerce to media and
                                                   entertainment, and even real estate.
       2021        L.H. Lee et al. [47]            The first effort to offer a comprehensive framework that examines the latest
                                                   metaverse development under the dimensions of state-of-the-art technologies
                                                   and metaverse ecosystems, and illustrates the possibility of the digital ‘big
                                                   bang’.
       2022        Q. Yang et al. [34]             Dive into the metaverse by discussing how Blockchain and Artificial Intel-
                                                   ligence (AI) fuse with it through investigating the state-of-the-art studies
                                                   across the metaverse components.
       2021        H. Duan et al. [48]             A three-layer metaverse architecture from a macro perspective, containing
                                                   infrastructure, interaction, and ecosystem.
       2022        S. Dhelim et al. [49]           a Fog-Edge hybrid computing architecture for Metaverse applications that
                                                   leverage an edge-enabled distributed computing paradigm.
    Table 1
    Metaverse related works list.

                                                        Metaverse services
       Service                   Typology                                            Refs
       Decentraland              Decentralized Virtual World                         https://decentraland.org
       Somnium Space             Decentralized Virtual World                         http://somniumspace.com
       Cryptovoxels              Decentralized Virtual World                         http://www.voxels.com
       The Sandbox               Decentralized Virtual World                         https://www.sandbox.game
       Oculus                    Virtual Reality/Augmented Reality                   https://www.oculus.com
       Playstation VR            Virtual Reality/Augmented Reality                   https://www.playstation.com/it-it/ps-vr
       Magic Leap                Virtual Reality/Augmented Reality                   https://www.magicleap.com/en-us
       Roblox                    Gaming Metaverse                                    https://www.roblox.com
       Fortnite                  Gaming Metaverse                                    https://www.fortnite.com
       Meta Horizon              Social VR                                           https://www.oculus.com/horizon-worlds
       Mozilla Hubs              Social VR                                           https://hubs.mozilla.com
       Rec Room                  Social VR                                           https://recroom.com
       Spatial                   Enterprise Metaverse                                https://www.spatial.io
       Immersal                  Enterprise Metaverse                                https://immersal.com
       Rumii                     Enterprise Metaverse                                https://www.dogheadsimulations.com/rumii
       Stellantis                Virtual Shopping Experience                         https://stellantisvirtual.com
       Skodaverse                Virtual Shopping Experience                         https://www.skoda-
                                                                                     auto.com/world/skodaverse
    Table 2
    Metaverse Services and Typology of classification.



used will be to analyze the papers and publications on the               from a technological point of view, Figure 2 provides an
Metaverse on the Smart Cities and Energy sector with a                   overview of what the metaverse enablign technologies com-
focus on the technologies used in in particular by focusing              ponents.
everything in the three layers in which the metaverse has                   The Metaverse architecture does not separate the physi-
been defined in the scientific literature [48](see figure 1).            cal world from the virtual world so that it can produce an
  To make it easier to understand the Metaverse concept                  immersive experience. The infrastructure layer contains the




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Andrea Cigliano et al. CEUR Workshop Proceedings                                                                               38–46


                                                        Metaverse services
    Reqs                         Dec.    Virt.   VR / AR        Gaming             Social VR       Ent. Meta-      V. Shop. Exp.
                                 World                          Met.                               verse
    Massive Access               High            High           High               High            Low             High
    Mobility/Coverage            Low             Low            Low                Low             Medium          Low
    Payment Systems              High            High           Low                Low             High            Medium
    Table 3
    Service Type Requirements.




           Figure 1: Three-layer Architecture of The Metaverse [48]



basic requirements to support the operation of the virtual            senses (especially sight and hearing) to produce a completely
world, such as computation, communication, blockchain,                immersive experience that immerses the viewer in a com-
and storage. The interaction layer is an essential part of            pletely virtual environment that feels very realistic. AR is a
the interaction layer that bridges the physical and virtual           technology that combines the digital and physical worlds.
worlds. The ecosystem layer can provide a parallel living             Object identification, plane detection, face recognition, and
environment with various services continuously serving all            movement monitoring are just a few of the technologies
the world’s inhabitants. A decentralized economic system              it employs to distinguish real-world surfaces and objects.
must also support the Metaverse ecosystem based on smart              Augmented reality could become our primary portal to the
contracts. Based on previous studies and literature, we con-          Metaverse, as well as our primary interface to digital re-
cluded that the most critical technologies to create a Meta-          sources, replacing the present ecology of phones and desk-
verse platform are Blockchain, Virtual/Augmented/Mixed                tops. Mixed reality is a fusion of augmented and virtual
Reality (Extended Reality or XR), Artificial Intelligence, In-        reality that does not take place exclusively in the physical or
ternet of Things (IoT), Digital Twin.                                 virtual environment [52]. Mixed reality can be employed in
                                                                      a variety of applications to enrich the Metaverse, including
5.1. Extended Reality                                                 entertainment, military, healthcare, and robot operations
                                                                      [53, 54, 55, 56]. Extended Reality (XR) is an umbrella term
Virtual Reality (VR) is a technology that uses software and           that encompasses Augmented Reality (AR), Virtual Reality
hardware to replace one’s perspective of the physical world           (VR), Mixed Reality (MR), and everything in between.
with a digitally created one [51]. The most popular VR ap-               Within the rapidly-emerging Metaverse, the potential of
plications today employ comprehensive control of a user’s             XR is driving expectations for a slew of previously unimag-




           Figure 2: Metaverse enabling technologies




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Andrea Cigliano et al. CEUR Workshop Proceedings                                                                               38–46



                                                                             • Interaction and Engagement with Natural Lan-
                                                                               guage Processing (NLP): AI-enhanced communica-
                                                                               tion tools allow for real-time language translation
                                                                               and generation of realistic dialogues with NPCs;
                                                                             • Behavioral AI with enhances the responsiveness of
                                                                               environments and characters to user actions, creat-
                                                                               ing a more immersive experience;
Figure 3: Extended reality scheme based on Paul Milgram’s                    • Accessibility and Inclusivity with Adaptive Inter-
scheme [6]
                                                                               faces: AI algorithms can adjust the user interface
                                                                               dynamically to accommodate users’ physical and
                                                                               cognitive needs.
inable possibilities. When Extended Reality replaces conven-
tional PCs and affects the way we work, play, and connect
                                                                        5.3. Internet of Things (IoT)
on a daily basis, human lives will never be the same. People
will use the Metaverse’s virtual capabilities to apply for jobs,        The Metaverse gathers data from a variety of Internet of
earn a living, meet up with pals, shop, and even get married.           Things (IoT) devices to ensure that it runs efficiently in
                                                                        several applications of the Metaverse such as medicine, ed-
5.2. Generative Artificial Intelligence                                 ucation and Smart Cities. The IoT devices will connect the
                                                                        Metaverse through the use of a diverse range of hardware,
     (GenAI)                                                            controllers, and physical items. Connecting to the Meta-
The concept of the Metaverse refers to a collective virtual             verse and navigating both physically and virtually is made
shared space, created by the convergence of virtually en-               possible by IoT devices equipped with specialized sensors.
hanced physical and digital reality. It is persistent and pro-          The capacity of IoT devices to perform operations in the
vides enhanced immersive experiences. GenAI, particularly               Metaverse will be critical to the user’s ability to operate in
Large Language Models (LLMs) and other generative mod-                  the Metaverse. Whether remotely performing large-scale
els, play a critical role in this environment by enabling the           computing tasks, accessing large databases, or providing
creation of dynamic content and intelligent interactions.               shared experiences between users, they are inextricably
GenAI refers to technologies that can generate new content              linked to networks and communications. The fifth genera-
from existing data. This includes text, images, video, and              tion (5G) and the sixth generation (6G) are the communica-
audio generation. LLMs, generative adversarial networks                 tion foundation of the Metaverse. 5G has the advantages of
(GANs), and variational autoencoders (VAEs) are pivotal                 high speed, low delay, ubiquitous network, low power con-
in crafting personalized and engaging content in the meta-              sumption and interconnection of all things, which makes it
verse. This study employs a mixed-methods approach, inte-               possible to realize the Metaverse. 6G will break the limita-
grating both qualitative and quantitative research. Data is             tions of time and virtual reality, expand the service objects
collected through virtual ethnography in various Metaverse              from humans, machines, and things in the physical world to
platforms, interviews with developers and users, and anal-              the “environment” of the virtual world, and realize the coop-
ysis of user-generated content within these environments.               eration between humans-machines-things-environment by
The study also reviews existing literature on generative AI             connecting the physical world and the virtual world, provid-
applications and their implications for virtual worlds. GenAI           ing the network foundation for the Metaverse. In the 5G and
and in general AI is a research discipline proceeded based              6G network environment, quantum communication ensures
on the hypothesis that every aspect of learning can in prin-            the communication security in the Metaverse. Post quantum
ciple be so precisely described [57]. The state-of-the-art AI           cryptography is already a reality today, quantum commu-
studies focus on machine learning, deep learning, and rein-             nication provides high security by applying quantum key
forcement learning in the fields including computer vision,             based on quantum no-cloning theorem and uncertainty prin-
decision-making, and natural language process (NLP). Intu-              ciple [43]. Moreover, quantum communication improves
itively, the breakthroughs of AI in the real world motivate             the overall security due to the superposition properties of
people to realize Metaverse. For example, machine learning              qubits.
provides technical support for all systems in Metaverse to
reach or exceed the level of human’s learning. It shall signif-         5.4. Digital Twin
icantly affect the operational efficiency and the intelligence
of Metaverse. Intelligent voice services provide technical              Digital Twin is a digital reproduction of a real product or
support, such as voice recognition and communication, for               component created by the combination of simulations and
Metaverse users.                                                        service metadata [58]. Data from numerous sources are in-
                                                                        cluded in the digital representation throughout the product
5.2.1. Applications of Generative AI in the Metaverse                   life cycle. These data are constantly restructured and shown
                                                                        in a variety of ways in order to forecast current and future
     • Content creation in a Dynamic Environment De-                    situations in both operational and design settings, therefore
       sign): Generative AI algorithms can create expan-                improving decision making [59]. Constructing a complex
       sive, detailed virtual environments on-the-fly, adapt-           virtual model that is the counterpart or twin of a physical
       ing to user interactions;                                        object in the real world is what Digital Twin is all about.
     • Content creation with Character and Avatar Cus-                  It employs simulation, machine learning, and reasoning to
       tomization: AI-driven tools enable users to create               aid decision-making and is generated from real-time data.
       highly personalized avatars and non-player charac-               Metaverse will be able to offer remote maintenance work-
       ters (NPCs) that can interact intelligently with users;          shops for machines that need to be repaired, which might be
                                                                        linked to or mapped onto a real workshop, thanks to digital



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twin and simulation technologies. Digital twins are an im-                  upon fiat currencies, the Metaverse inevitably needs
portant part of the Metaverse because of their non-artistic                 cryptocurrencies, which deliver value during their
qualities.                                                                  circulation, payment, and currency of settlement.
                                                                            In detail, blockchain systems have implemented a
5.5. Blockchain                                                             series of operations for cryptocurrencies, such as
                                                                            creation, recording, and trading. Traditionally, Bit-
Metaverse envisaged scenario that it is closely related is                  coin [35] adopts the UTXO (Unspent Transaction
just a parallel world, where the economic ecology is in-                    Outputs) transaction model to trace the usages of
evitable. The digital assets are the core functions provided                this cryptocurrency, while Ethereum [36] records
by the blockchain, such as the homogenized tokens based                     the balance of each account address, which can be
on ERC-20 and the non-homogenized tokens based on ERC-                      queried directly through the Ethereum dataset tools
721 or ERC-1155. Since the blockchain technology maintain                   (e.g. Etherscan). Both UTXO and Ethereum adopt
the smooth economic operation of Metaverse, blockchain                      the Proof of Work (PoW) consensus. Miners mint
technology is the soul of the Metaverse. The motivation                     coins by generating new blocks. However, there is
behind integration of blockchain in the metaverse can be                    a cost for them to generate blocks. In such PoW
summarized in:                                                              consensus, miners mine blocks by calculating a hash
                                                                            puzzle, which consumes a giant amount of electric-
     • Ensuring Data Privacy and Security
                                                                            ity. For Ethereum 2.0, miners under the PoS (Proof of
     • Ensuring the Quality of the Data
                                                                            Stake) consensus mechanism mine blocks by elect-
     • Enabling Seamless and Secured Data Sharing
                                                                            ing, which depends on the coin age of miners [37].
     • Enabling Data Interoperability                                       Using blockchain technologies, there are multiple
     • Ensuring Data Integrity                                              ways to deal with cryptocurrency exchanges. The
  There are many use cases of application of blockchain in                  vast majority of cryptocurrency exchanges occur in
the metaverse, for example:                                                 centralized exchanges such as OKEx and AOFEX.
                                                                            The advantages of the centralized exchanges include
     • Financial system: Tamper-proof, openness, trans-                     low-latency transactions, simple interfaces and a
       parency and decentralization are the four significant                certain level of security. However, the centralized
       features in blockchain. In the Metaverse, millions of                exchanges also experience scandals such as price ma-
       transactions happen for goods exchange in a short                    nipulation by insiders taking advantage of informa-
       time, so the security and efficiency of these trans-                 tion asymmetries. Other cryptocurrency exchanges
       actions must be guaranteed. Based on the above-                      occur in decentralized exchanges, where smart con-
       mentioned features, blockchain is a good candidate                   tracts or other peer-to-peer network execute trans-
       for the large-scale and scalable economic system                     actions automatically [38]. In some cases, the smart
       construction in the virtual world                                    contracts, e.g., IDex and Paradex, maintain contin-
     • Smart contract deployment: The inherent nature of                    uouslimited order books offchain, a counterparty
       the blockchain network allows smart contracts to be                  of the order or the exchange itself performs order
       automated, programmable, open, transparent and                       matching and submits order pairs to the smart con-
       verifiable among other remarkable features, thus al-                 tract for processing. In other cases, such as Uniswap
       lowing for onchain trusted interactions without the                  and Bancor, the smart contract performs as a coun-
       need for a thirdparty verification platform. If the                  terparty and trade with its user directly. It is easy
       financial system in the Metaverse is built on top of                 to foresee that metaverse built by different corpora-
       the blockchain, the characteristics of smart contracts               tions will coexist in the near future. Thus, various
       can be used to decentralise the operation of contracts               cryptocurrencies used in those smaller metaverses
       in a programmed, noncustodial, verifiable, traceable                 need to be exchanged like fiat currencies in the phys-
       and trustworthy manner, thus significantly reducing                  ical world. We envision that multiple cryptocurren-
       the harmful behaviours such as rent-seeking, cor-                    cies will also coexist in future Metaverse. The Meta-
       ruption and underhanded operations that may exist                    verse users will naturally need to exchange different
       in the financial system, and can be widely used in                   cryptocurrencies.
       the financial, social and gaming sectors.
     • NFTs: The most important feature of NFT is indi-
       vision and uniqueness, which make it suitable for             6. Results and discussion
       identity representation, for example, assets that are
                                                                     The Metaverse, designed as a simulation of the natural world,
       exclusive and indivisible and can be freely traded
                                                                     covers all areas related to humans and society and offers a
       and transferred. In the Metaverse, these virtual as-
                                                                     suitable working platform for researchers in all fields, from
       sets come with certificates called NFTs that indicate
                                                                     health to sports, from education to art. This the research
       ownership.
                                                                     deals with the scientific aspect of the Metaverse studies and
     • Cryptocurrency: is one of the main applications
                                                                     examines academic studies in Energy and Smart Cities and
       under the spotlight empowered by blockchain. It
                                                                     in other research keywords connected from a technological
       also makes blockchain more popular. The trust of
                                                                     and related domain point of view. Most of the studies in
       a wide range of users supports the value system
                                                                     the literature have explained the concept of the Metaverse.
       of cryptocurrencies and drives both the circulation
                                                                     The implemented applications observed, are mainly at the
       and trading of cryptocurrencies. To date, more than
                                                                     prototype level. However, these studies, which make signif-
       12.000 virtual currencies have been issued world-
                                                                     icant contributions to the literature in terms of design and
       wide, and new virtual currencies are still being cre-
                                                                     editing, have a high potential to be realized when sufficient
       ated every single day. Like the real world builds



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Andrea Cigliano et al. CEUR Workshop Proceedings                                                                                  38–46



technical infrastructure is provided. The AR/VR technolo-                 currency exchange between the Metaverse and the physical
gies, digital twins, and Blockchain applications, which are               world remains an open issue. In addition, the transaction
components of the Metaverse, have been actively used for a                volume and frequency that occurred in the Metaverse will
while. Furthermore, technological developments that allow                 become extremely much higher than happened in the phys-
the purchase and sale of non-Fungible Token (NFT)-based                   ical world. Thus, how to support such high-volume and
artworks, souvenirs, and lands, which have been very pop-                 high-frequency transactions remains a challenging problem
ular lately, show that the promised universe is one step                  in the future Metaverse. Another issue related to future
closer. However, for this fictional universe to be fully real-            Metaverse might be the inflation caused by massive cryp-
ized, 5G technology needs to come into play, AR/VR hard-                  tocurrency supplements in a decentralized economy system
ware and content should become widespread, and the use                    built upon blockchain and AI technologies.
of peer2peer technologies should increase. When the Meta-
verse is brought to life as it was designed, it will be possible
to perform many daily activities such as working, travel-                 7. Conclusions
ing, shopping, going to school, having fun by creating a 3d
                                                                          The analysis carried out on the research publications us-
avatar in a digital universe. Any change users make in the
                                                                          ing a sample of the universe searched through the online
Metaverse will be permanently visible to almost everyone,
                                                                          metadata sites of the research works for certain keywords,
thus providing users with greater identity and continuity
                                                                          it emerged that the metaverse it is already having an impact
of experience. The Metaverse becoming a reality will sup-
                                                                          on certain categories of services and will be increasingly dis-
port and transform existing research topics and reveal new
                                                                          ruptive. The services involved will be increasingly pervasive
research areas. In addition, this digital universe will be a
                                                                          as the technologies enabling the metaverse are pervasive.
big data source with the data it will produce. Therefore, it
                                                                          The research area relating to the metaverse and quantum
will also provide a suitable working platform for big data,
                                                                          computing deserves a separate discussion, which deserves
data science, and artificial intelligence researchers. With
                                                                          a separate discussion as the latter is a rapidly growing and
the development of the technological infrastructure and the
                                                                          maturing technological area. The challenges facing us in
interest of researchers in this field, it is expected that the
                                                                          the metaverse are enormous in the short to medium term.
number of scientific studies in the area will increase, and
                                                                          According to the current trend, it seems that metaverse will
richer content will emerge soon. All these developments
                                                                          be the future from multiple perspectives and offers limitless
herald an exciting future. An open Metaverse, this is one
                                                                          possibilities from many frontiers. Enabling technologies
of the challenging issues that will determine, in my view,
                                                                          such as Blockchain, GenAI, XR, Digital Twin will be in-
its success or not. In this context, the key word is interop-
                                                                          strumental in realizing the true potential of the Metaverse.
erability. Not only does the so-called Metaverse still not
                                                                          There is a huge research prospect in these areas.
exist in the forms in which the marketing of certain com-
panies wants to sell it. But not even a single Metaverse
is the digital twin of the physical world. Rather, there are              References
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