
IEEE Communications Magazine • August 2023
95
a decentralized manner. However, even capital-
izing on the benefits of the above technologies,
the design toward the participatory economy still
faces many difficulties. On the one hand, it is diffi-
cult to quantify and transact semantic information
circulated in Web 3.0. The reason is that pro-
ducers and consumers are difficult to maximize
their revenue and utility [6]. On the other hand,
Web 3.0 is supported by a public blockchain plat-
form, which makes pending semantic information
exposed to both parties. Consumers can copy
semantic information without payments to max-
imize their benefits [7] in current marketplaces.
In this article, we attempt to complement the
understanding of blockchain, semantic extraction
and communication playing an important role in
Web 3.0. We also develop a fair and efficient mech-
anism based on blockchain and semantic commu-
nication to tokenize semantic information, enable
semantic exchange by utilizing the Stackelberg
Game, and Zero Knowledge Proof (ZKP) to achieve
efficiency and privacy toward participatory econo-
my. Our contributions are summarized as follows:
• We explore tokenizing semantic information
with the support of blockchain and establish
a novel semantic exchange framework.
• To achieve optimal pricing strategies, we
propose a Stackelberg game-based semantic
trading mechanism in this framework.
• To protect privacy of semantic transactions,
we utilize zero-knowledge proof to share
semantic information without publishing
authentic one before payments.
• Taking a specific Web 3.0 service, that is,
urban planing, as a case study, we illustrate
how to utilize the proposed framework to
achieve exchanges of semantic information.
the Future oF blockchAIn, semAntIc extrActIon And
communIcAtIon-enAbled the Internet
An AccelerAtIng growth oF the Internet
The accelerating growth of the iterations of the
Internet is witnessed from Web 1.0 to Web 3.0. We
illustrate the difference between Web 1.0, Web 2.0,
and Web 3.0, the connection between Web 3.0,
blockchain, edge computing, and semantic com-
munication, and the applications of blockchain and
semantic communication-enabled Web 3.0.
whAt Is the dIFFerence between
web 1.0, web 2.0, And web 3.0?
The development of the Internet experienced three
iterations of Web 1.0, Web 2.0, and Web 3.0 eras.
Web 1.0 is a read-only web, where users can only
read information produced by centralized content
producers from centralized servers. Web 2.0 is
a read-write web driven by mobile connectivity,
social networks, and cloud computing, where users
can read and write content on platforms provid-
ed by giant tech companies. Platforms can utilize
content produced by users to make a profit like
advertising without paying any to producers. There-
fore, the need for Web 3.0 is that users expect
to control their data and protect their privacy in
a decentralized manner. Web 3.0 is a read-write-
own web driven by blockchain, edge computing,
artificial intelligence, and semantic communication,
where users can read, write, and own content on
decentralized value networks.
whAt Is the connectIon between web 3.0, blockchAIn,
edge computIng, And semAntIc communIcAtIon?
Whereas Web 2.0 was mainly driven by mobile con-
nectivity, social networks, and cloud computing to
allow users to participate in constructing platform
networks, Web 3.0 is enabled by blockchain, edge
computing, artificial intelligence, and semantic com-
munication to design an open, trustless, seamless,
ubiquitous, and efficient next-generation Internet.
Blockchain is often considered the same as Web
3.0, while it is actually an infrastructure to support
decentralized data sharing in an open and trustless
manner. Edge computing is also vital to construct
Web 3.0, which can leverage the computing and
storage capabilities of ubiquitous edge devices and
servers to make Internet services available and near
to users. Artificial intelligence can leverage tons of
data produced by edge computing and blockchain
to train models, which can improve services and
provide seamless experiences. Instead of transmit-
ting information accurately, semantic communi-
cation [8] based on edge computing and artificial
intelligence pursues how precisely the transmitted
information can convey the desired meanings to
reduce information overloaded and energy con-
sumed to provide Web 3.0 with efficiency.
whAt Are ApplIcAtIons oF blockchAIn And
semAntIc communIcAtIon-enAbled web 3.0?
Whereas Web 2.0 mainly focuses on applications
on platform networks for controllers to make a
profit from user data, blockchain and semantic
communication-enabled Web 3.0 concentrate
on value networks to facilitate transparent use of
data, and decentralized data exchange and shar-
ing. Blockchain and semantic communication-en-
abled Web 3.0 toward participatory economy can
be applied for embracing the digital transforma-
tion of healthcare services, the automotive indus-
try, and urban planning, as shown in Fig. 1.
reseArch gAps oF blockchAIn And semAntIc
communIcAtIon-enAbled web 3.0
Instead of a mansion in the air, Web 3.0 is the
next-generation infrastructure consisting of multi-
ple building blocks like blockchain and semantic
communication, which is also similar to block-
chain made up of cryptography and distributed
algorithms. Web 3.0 is expected to construct an
entirely new Internet for participants to transact
and interact in the participatory economy.
Previous works only focus on the blockchain
or semantic-enabled Web 3.0, while there are few
works focusing on the integration between Web 3.0,
blockchain, semantic extraction and communica-
tion. DeSci [9] utilized blockchain and decentralized
autonomous organizations to construct a reference
model for scientific systems. A unified blockchain-se-
mantic framework enabled Web 3.0 was proposed
to maintain service security and improve interaction
efficiency in Web 3.0 [5]. HyperService [10] was
designed to construct an interoperable cross-chain
platform for decentralized applications to interact
data across blockchains.
Whereas Web 2.0 was main-
ly driven by mobile connec-
tivity, social networks, and
cloud computing to allow
users to participate in con-
structing platform networks,
Web 3.0 is enabled by
blockchain, edge computing,
artificial intelligence, and
semantic communication to
design an open, trustless,
seamless, ubiquitous, and
eicient next-generation
Internet
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