Ukraine has made significant progress in the use
of digital currencies, applying advance technologies
in this area and in the legal framework formation. The
following facts support this concept:
the National Bank of Ukraine completed a pilot
project on the digital currency introduction by central
bank (CBDC) in 2018;
according to the Ministry of Digital
Transformation of Ukraine, the country has been on
the 4th place in the ranking of the global index of
cryptocurrency use in 2021 (MDTU, 2021); the
regulator conducted a survey of financial market
experts and identified three areas of possible use of e-
hryvnia in 2021(NBU, 2021).
The Law of Ukraine «On Virtual Assets» was
adopted On September 8, 2021 (The Law of Ukraine
№3637, 2021). The law provides for a comprehensive
settlement of legal issues arising in connection with
the circulation of virtual assets in Ukraine, defines the
rights and obligations of the virtual asset market
participants, the principles of state policy in virtual
assets circulation.
The facts show a high level of activity in the use
of virtual assets, including digital currencies, both at
the private sector and at the state levels.
Digital currencies today have a number of
disadvantages, including the difficulty of application,
the risk associated with volatility in their exchange
rate and lack of legal status in many jurisdictions, as
well as unproductive costs. Cryptocurrency mining
requires large amounts of electricity, which is
accompanied by an essential increase in heat
emissions. These are unproductive costs of society
and great environmental burden, which is completely
inconsistent with the sustainable development goals.
To illustrate this point, let us give some indicative
figures regarding the costs of electricity and CO2
emissions associated with the mining of
cryptocurrencies. Scientists at the University of
Cambridge have calculated that about 121.36
terawatt-hours per year are spent on cryptocurrency
mining. This exceeds electricity consumption in
countries such as: Argentina (121 TWh), the
Netherlands (108.8 TWh), almost equal to the
consumption of Norway (122.2 TWh) (Chikishev,
2021).
As for the cost of electricity, this is probably, a
problem that would be resolved sooner or later. After
the energy crisis of 2021-2022, associated with rising
gas prices, we can expect investments in the field of
alternative energy sources. A technical solution will
be found and energy will get cheaper in the future.
In our view, the carbon emissions associated with
cryptocurrency mining are a big problem.
Bank of America Global Research analysts in
their report «Bitcoin's dirty little secrets» presented a
number of disadvantages of bitcoin, among which
are:
- the inability to use it as a means of storing funds
or making payments;
- the formation of a certain centralization (as of
mid-2021, 95% of bitcoins were controlled by the
owners of 2.4% of wallets (recall, the initial idea lay
precisely in decentralization);
- low speed of payment processing (1400
transactions per hour against 236 million transactions
processed by the payment system Visa);
- negative impacts on the environment.
Regarding the latter disadvantage, the report
provides figures from current research: each purchase
of cryptocurrency for 1 billion dollars is equivalent to
annual carbon emissions from 1.2 million cars;
mining and operations emit about 60 million tons of
carbon annually, which is comparable to carbon
emissions from a country like Greece (Winter, 2021).
However, there are cases when cryptocurrencies
are used for the needs of society. It concerns a new
phenomenon such as cryptocurrencies, issued by
municipalities to finance the community needs. The
City of Miami launched its own cryptocurrency,
MiamiCoin On June 8, 2021. The current value of the
currency at the beginning of December 2021 was
about 2.3 USD (at the initial rate of 0.02 USD), and
the volume of trades per day was almost 500 thousand
USD. MiamiCoin can be extracted using the Stacks
protocol or purchased on the open market. The city
has already received more than $ 20 million from the
MiamiCoin project, and its market capitalization has
reached 2.9 billion USD (Kim, 2021). The city
revenues are essentially pure seigniorage and can be
used to finance infrastructure projects, develop small
and medium-sized businesses, and improve the
functioning of municipal education and health care
facilities.
Being able to have a local means of payment
speeds up the exchange of values within the
community, especially providing municipal and
private property is also tokenized (Figure 2).
According to the concept, you can get local
cryptocurrencies in two ways by mining or purchasing
on a specialized platform, which was created with the
participation of the municipality (you can use existing
platforms under the contract). Within the community
economy, coins can be used to obtain goods and
services from local producers. Thus, transactions are
carried out almost instantly in the distributed system
and without participation of intermediaries (with the
minimum commission or without the commission at
ISC SAI 2022 - V International Scientific Congress SOCIETY OF AMBIENT INTELLIGENCE