Research on Bitcoin’s Working Mechanism and Monetary Attributes
Shengye Tao
1, a
and Zhen Li
2, b*
1
Hohai University, School of Marxism, Nanjing, Jiangsu, China
2
Jining University, Jining, Shandong, China
Keywords: Bitcoin, Monetary, Attribute.
Abstract: This paper analyses the currency attributes of bitcoin starting with the operation principle of bitcoin. This
paper argues that 1. Bitcoins are automatically generated by computer algorithms and do not involve social
labor; 2. transaction confirmation time is so long, block capacity is so small, that bitcoin has difficulty in
dealing with the huge amount of transaction payment information; 3. the total amount fixed and high
concentration make the bitcoin unable to perform the function of storage means; 4. the bitcoin is difficult to
conduct credit transactions and financing activities because of highly anonymity; 5. unstable transaction value
and the number of issues of bitcoin does not match the growth of international trade make it difficult to be an
international currency.
1 INTRODUCTION
On November 1, 2008, Satoshi Nakamoto, the
inventor of Bitcoin, published a paper entitled
Bitcoin: A Peer-to-Peer Electronic Cash System on
the Internet. Nakamoto introduced an electronic cash
system based entirely on Point to Point (P2P). In such
a system, blockchain technology and distributed
database are utilized so that both parties of the
transaction can get rid of a third-party intermediary
(commercial banks, for example) and conduct
payment directly, hence creating a brand new
decentralized monetary payment system. This is the
birth of Bitcoin, a digital currency that is not
controlled by central banks and any financial
institutions. The first transaction using Bitcoin took
place in 2010 when an American programmer
managed to exchange 10,000 Bitcoin for two slices of
pizza. At that time. 10,000 Bitcoins were only worth
30 USD. Earlier in 2021, the price of Bitcoin hit its
highest in history, at 46,000 USD. However, it fell
back to 30,000 USD in a few days. Bitcoin’s price has
been soaring since its birth, creating a wave of digital
currency in the world financial sector. Bitcoin has
received wide attention from governments, investors,
and consumers around the world. Germany has
become the first country in the world to recognize the
legal status of Bitcoin. Canada installed its first
Bitcoin ATM, through which citizens can exchange
Canadian dollars and Bitcoins in both directions. The
United States and Singapore are supportive of Bitcoin
trading. The governments of Russia and Thailand,
however, have completely blocked Bitcoin. India,
Norway, and South Korea, on the other hand, are
prudent towards the use of Bitcoins, and have issued
some regulations to restrict the cryptocurrency’s
development. Five Chinese Ministries and
Commissions, including the People’s Bank of China,
jointly issued the Notice of Preventing Bitcoin Risks
in 2013, refusing to recognize the monetary attributes
of Bitcoin and banning its circulation in the domestic
market.
At present, major controversies still exist in the
academic community concerning the monetary
attributes of this cryptocurrency. Scholars with a
supportive attitude believe that Bitcoins can be used
as a universal equivalent that participates in
commodity exchanges. By analyzing the five
functions of a currency, Hong concluded that Bitcoin
is the same as other currencies such as gold and silver
in serving the functions of currency (Hong, 2011).
McHugh described Bitcoin as “another form of
currency” and “a kind of private currency.” (McHugh,
2014) Chowdhury and Mendelson hold the belief that
as more and more people came to recognize virtual
currencies, it is only a matter of time before virtual
currencies go mainstream (Chowdhury, 2014). Jia
believes that Bitcoin is a brand new decentralized
virtual currency that can serve as a measure of value,
an exchange medium, the means of payments, and a
208
Tao, S. and Li, Z.
Research on Bitcoinâ
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Zs Working Mechanism and Monetary Attributes.
DOI: 10.5220/0011733200003607
In Proceedings of the 1st International Conference on Public Management, Digital Economy and Internet Technology (ICPDI 2022), pages 208-214
ISBN: 978-989-758-620-0
Copyright
c
2023 by SCITEPRESS – Science and Technology Publications, Lda. Under CC license (CC BY-NC-ND 4.0)
store of value, forming an independent currency
system. Based on the current challenge facing the
Bitcoin market, Jia also proposed that we should
improve the supervision of Internet financial
institutions and establish a coordinated supervision
mechanism. (Jia, 2013)
However, some scholars hold a dubious attitude
towards Bitcoin’s monetary attributes and durability.
Surda believes that without intrinsic value or
government endorsement, Bitcoin’s circulation
depends entirely on users’ confidence and markets’
acceptance. (Surda, 2014) Wang proposed that there
are four major risks in the use of Bitcoin: the
uncertain legal status, the vulnerability of trading
platforms, price fluctuations and Ponzi schemes, as
well as value abrasion. (Wang, 2013) According to
Wu, problems and risks of Bitcoin include excessive
speculation, cybercrime, huge price fluctuations,
waste of social resources, etc. (Wu, 2013) Li
proposed that Bitcoin is a kind of virtual speculative
asset. It is neither a commodity currency nor a credit
currency, which means it can never be a real currency
in China. Bitcoin’s decentralization nature,
fluctuating exchange values, and the fixed amount
that cannot be able to keep up with the international
economic development mean that this cryptocurrency
will never become an international currency. The fate
of Bitcoin depends on how the central banks view it
and the merchants’ willingness to accept it. (Li, 2015)
Bitcoin is generated by computer algorithms, a
great difference from any previous currency. The
author of this paper will start with Bitcoin’s working
mechanism, and then conduct an economic analysis
of Bitcoin before he finally reaches a conclusion.
2 BITCOIN’S WORKING
MECHANISM
By using blockchain technology and a distributed
database, Bitcoin forms a P2P electronic cash
transaction system. No third-party intermediary
would be involved in the transaction process. The
transaction will be carried out solely by the two
parties. It would be a brand-new decentralized
currency payment system.
2.1 Bitcoin’s Payment Mechanism
In traditional centralized payments, financial
institutions such as commercial banks serve as third-
party intermediaries and transfer the money from
Client As account directly to Client B’s account.
They use their ledger which stores the balances of all
depositors to make these transactions happen. The
commercial banks lie at the center of the payment.
They have to ensure that the amount in each client’s
account could not be changed for no reason.
Commercial banks set up their computer rooms, build
independent network environments, purchase
advanced servers and hire senior experts for security
reasons.
Bitcoin, however, adopts a decentralized ledger
storage solution. All computers connected to the
Bitcoin system (or the “nodes”) store a ledger that
records all payments up to this point. Since the ledger
is stored at each node, if problems occur at one of
these nodes, the correct data can still be accessed
from other nodes on the network. When the ledger is
updated at a certain node, other nodes would be
notified to change their ledger records.
Bitcoin Payment not only involves paying with
Bitcoin, but also the recording of corresponding
payment information. Such information includes 1.
Bitcoin addresses (id); 2. source of the fund, the
Bitcoin addresses (id) of the previous payment where
you receive these Bitcoins; 3. payers’ electronic
signature in the previous payment where you receive
these Bitcoins for other nodes to verify the
authenticity of the source; 4. destination of the funds,
and the account (public key) of the Bitcoins’
recipient; 5. amount of the fund; 6. payers’ signature
for this transaction to prove that he/she is the issuer
of the payment. Since each transaction order records
the previous owner, current owner, and the future
owner of the funds, we will be able to trace the entire
process of the transaction based on this information.
This is also one of the characteristics of Bitcoin.
Finally, when each transaction is completed, the
system would inform all users of the execution of this
payment. (Yao, 2013)
All information of Bitcoin payments that abide by
the system rules will be packed and stored. The
package they form is what we usually call a “block”.
Currently, the Bitcoin system generates a block every
ten minutes, and each block records the parameters of
the previous block. In this way, each block can be
traced back to its previous block, and even all the way
to Block #0 (or the Genesis Block), hence forming a
complete transaction chain, also a now-famous
blockchain. This blockchain will announce to the
whole network each time a new block is added so that
every “node” in the Bitcoin system could have a copy
of the record. The highly decentralized storage of
transaction information makes it almost impossible
for us to completely lose the Bitcoin blockchain.
We can see from the above introductions that once
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payment information is stored in a blockchain.
Theoretically speaking, it cannot be modified or
deleted. With its unique technical characteristics,
Bitcoin provides us with a new payment mechanism.
2.2 Bitcoin’s Generation
Once a Bitcoin transaction occurs, the system will
first verify the transaction information throughout the
entire network to ensure that the source and
destination of the Bitcoins are authentic and valid to
prevent false payments and double payments. If the
verification succeeds, these transactions will be
temporarily stored in a valid transaction pool; they are
called “unconfirmed transactions”. Eventually, the
unconfirmed transactions will be loaded into a block.
Only when the newly formed block is added to the
entire blockchain, can the transaction be declared
settled. From that moment, the transactions can no
longer be modified or deleted anymore. On the other
hand, if the verification fails, the transaction will be
deemed as an “invalid transaction.”
As was mentioned earlier, in times of a new block
being added to the chain, the blockchain will
announce the whole network, so that every computer
connected to the Bitcoin system could make a copy of
the record. The more computers connected to the
Bitcoin system are, the more secure the transaction
information, i.e., the blockchain will be. To encourage
more people to connect their computers to the Bitcoin
system and make use of their idle computing power
for accounting, certain rewards are provided for each
computer node that gains the power to add a new
block for the first time. Those rewards are today’s
well-known Bitcoins. The newly generated
information of Bitcoin is also stored in the new block.
In January 2009, the first block, Block #0, or the
Genesis Block, was included in the public ledger at
6:15 p.m. at server time. The reward was 50 Bitcoins.
Besides a certain amount of Bitcoin, these nodes that
have the right to add a new block will also be
rewarded some “transaction fees” from the
transaction orders in the new blocks.
So far, as Bitcoin continues to enter the public eye,
more and more people (or computers) are connected
to the Bitcoin system. Every node on the system is
vying for the power to add a new block so that they
can gain more rewards. The process is vividly called
“mining”. Users participating in the Bitcoin system
would install mining software on their computers and
use them to solve complex problems that are
automatically generated by the system. In fact, what
these computers need to do is to calculate the hash
value generated by the Hash function with the
parameters of the previous block. The first node
solving the problem will be granted the right to add a
new block and at the same time, gain a certain amount
of Bitcoin for rewards, while other nodes can only
copy the newly added block without any rewards.
According to the setting of the Bitcoin system, the
Bitcoins rewarded for each added new block are
halved every four years. When the year 2009 first
started, the reward was 50 Bitcoins for each new
block added. It was 25 Bitcoins for 2013-2016; 12.5
for 2017-2021. The ultimate setting is that the total
amount of Bitcoin in the system will reach the upper
limit of 21 million in 2140. (Yang, 2014)
Since the number of miners mining
simultaneously is uncertain, the Bitcoin system will
automatically adjust the problem difficulty based on
the total computing power of all nodes, which means
if the total computing power is bigger in the system,
the problem difficulty will be increased, and vice
versa. This rule ensures that the generation rate of
new blocks (Bitcoin) remains within an acceptable
range. The current rate is one new block generated
every ten minutes. As more netizens are interested in
mining Bitcoins and invest their computing power in
the Bitcoin system, the mining also gets significantly
difficult. Now the miners have already formed
groups, connecting their computers with each other’s
and joining their computing powers, forming a so-
called “mining pool” to get the ability to solve more
difficult mathematical problems and increase the
odds of gaining Bitcoins. The Bitcoins then gained
will be handed out to the group members based on
their contributions.
2.3 Bitcoin’s Characteristics
Based on the above analysis of Bitcoin’s working
mechanism, we can conclude that Bitcoin with the
following characteristics:
2.3.1 Decentralization
Most existing currencies are issued by a country’s
central bank. They receive endorsement from the
local governments, and their circulation is guaranteed
by the law. Bitcoin, on the other hand, is
automatically generated by computer algorithms. Its
generation rate and total supply have already been
determined at the time of its birth, not subject to the
influence of any institution or individual.
2.3.2 High Anonymity
The forming of Bitcoin addresses (id) does not
require real-name authentication. All the users need
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to do is to submit applications on related websites,
and then they can get one or more Bitcoin addresses.
These Bitcoin addresses are merely some irregular
character strings made of letters and numbers, whose
only function is to accept or pay Bitcoins. Therefore,
no owner information could be drawn from these
addresses. Also, no connection could be seen between
different accounts of the same owner, so others would
not be able to calculate the total amount of Bitcoins
owned by a particular user.
2.3.3 Perfect Traceability
The blockchain records all the transactions that have
ever happened in history. Each Bitcoin can be traced
back to the time when it was first generated. Every
node in the Bitcoin system keeps a complete copy of
the transaction history, which means anyone could
have access to the transaction records of every
account. This puts the whole network under
supervision to ensure a fair and transparent market
order.
2.3.4 Irreversibility of Bitcoin Transactions
Sustainable right to add a new block would be
guaranteed, unless a certain node possesses more than
51% computing power of the entire system. Once a
transaction is recorded on the blockchain, other nodes
would copy and save the record immediately. It would
be impossible to cancel the change or delete the
record. This design prevents the payer from
infringing the payee’s interests by canceling any
operations.
2.3.5 No Inflation Will Be Seen in The
System
As was mentioned above, the total amount of Bitcoin
would be 21 million, and the generation rate of new
Bitcoin halves every four years. The new Bitcoin is
automatically generated by computer algorithms, so
no sudden will increase or decrease in circulation.
2.3.6 Bitcoin Knows No Borders
Anyone who possesses a Bitcoin address (id) with a
password (or private key) can receive or pay with
Bitcoin on any computer in every corner of the world,
without government supervision.
2.3.7 The Transaction Fees of Bitcoin Are
Low
Only 1 bitcent would be charged for each transaction.
No exchange rate exists in cross-border transactions.
(Jia, 2013)
3 BITCOIN’S CURRENCY
ATTRIBUTES
From Bitcoin’s working mechanism, we can see that
Bitcoin has unique characteristics compared to any
traditional currencies. Both western economics or
Marxist economics agree that a currency should have
the following five functions: a measure of value, an
exchange medium, means of payments, store of
value, and universal currency. The author believes
that Bitcoin is still sufficient in fulfilling its functions.
3.1 A Measure of Value
The value of a commodity depends on the relative
quantity of labor that is necessary for its production.
Here the socially necessary labor time serves as the
intrinsic measure of commodity value. Currency is a
kind of universal equivalent. The reason why it can
be a measure of value is that currency itself also
possess value. Therefore, the value contained in other
commodities can be measured with the currency as
the scale.
Bitcoin was first created to encourage more
“nodes” to connect themselves to the Bitcoin system
and devote their idle computing power to solving
math problems. Bitcoin is entirely generated by
computer programs automatically, with no social
labor involved in this process. Some believe that the
computing hardware and electric power invested in
the “mining” process can be seen as the value of
Bitcoin. But the truth is, to raise or decrease such
investment has little impact on the speed of Bitcoin
generation. No matter how many people are engaged
in the “mining”, Bitcoin will be always generated at a
set rate. It is worth noting that to maintain this rate,
the Bitcoin system will automatically adjust the
problem difficulty based on the sum of computing
power in the systems. In other words, if there is more
computing power in the system working on the same
problem simultaneously, the problem gets more
difficult, and vice versa. As the number of “miners”
gradually increased, the problems also get more and
more difficult, leading to a serious waste of social
resources. According to the statistics of the Bitcoin
Energy Consumption Index, by the end of 2020, the
electricity consumption devoted to Bitcoin mining in
2020 reached 29.51 Terawatt Hours (TWh),
accounting for about 0.13% of global electricity
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consumption. This figure was higher than the yearly
power consumption of nearly 160 countries or
regions, including Iceland and Nigeria. If all the
Bitcoin miners around the globe were to form a new
country, its power consumption would rank 61st in
the world. ((Sources: power compare)
3.2 An Exchange Medium
Currency serves as a medium of commodity
exchange. In the exchange process, the sellers convert
their goods into money, and then use the money they
received to purchase new goods. Here, currency
serves as the exchange medium that enables goods
circulation.
Bitcoin is favored by users due to its
decentralization, high anonymity, transaction
irreversibility, perfect traceability, and low
transaction fees. Many people regard it as a safe and
effective means of payment. But we still need to
remind you that Bitcoin still poses some concerns:
First, the Bitcoin system generates a new block every
ten minutes and only at this time, the transaction
record loaded on the blockchain will be preliminarily
confirmed. The transaction will be further confirmed
once the new block is connected to the previous
block. Based on the technicality of the Bitcoin
system, the transaction could be truly and irreversibly
confirmed only after the confirmation of six new
blocks. The means to truly confirm a Bitcoin
transaction takes about an hour, which is too slow
compared to the current centralized payment system
that only takes seconds. The slow transaction speed is
closely linked to the underlying technical design of
the Bitcoin system. Second, a block is 1 M in size,
which is big enough to contain around 1,000 pieces
of transaction information. This means that a large
amount of transaction information will be temporarily
stored in the transaction pool to be confirmed. This
would prolong the transaction time, posing great
limits on the number and scale of transactions being
conducted simultaneously. Third, every node in the
Bitcoin system must keep a copy of the entire
blockchain, and this chain is still getting longer, with
one new block added every ten minutes. Currently, its
size is even bigger than the storage capacity of any
personal computer. Many Bitcoin users have to seek
help from the supercomputers in large institutions,
which contradicts Bitcoin’s decentralization nature.
Since deficiencies like this were developed out of
Bitcoin’s decentralization nature, they cannot be
1
Geek: With the rise of the Internet culture, geeks refer to
those who show passion for computing and Internet
fixed by merely upgrading the central hardware or
software just like what has been done on a centralized
trading system. The solutions to those problems are
still unknown and under discussion.
3.3 Store of Value
Currency as a store of value refers to its being
preserved as a symbol of social wealth when it is no
longer circulated on the market. It can adjust the
amount of currency being circulated. Only authentic
and pure gold and silver, in the forms of coins and
bars, can be kept as a store of value. When kept in
banks, paper money can be seen as the symbol of
one’s assets, but it can never be a store of value.
People will only keep paper money only when its
value could remain stable for a long time.
Bitcoin does not possess any value in itself, so it
can never be a store of value like gold and silver.
Though the total amount of Bitcoin was set to be 21
million, some people insist that it has high resistance
to inflation. However, two shortcomings that exist
with Bitcoin make it almost impossible for this
cryptocurrency to become a store of value. On the one
hand, there will be only 21 million Bitcoin in this
world, but our total economic and social production
capacity is far greater than this. We all know that
Bitcoin can be divided into eight decimal places, so it
seems possible for it to satisfy the transactions of the
whole society. However, owners of Bitcoin, seeing
the rising trend of Bitcoin prices, would not use their
Bitcoin for transactions. Instead, they will hoard them
and wait for them to appreciate. An American
economist, Paul Krugman, once wrote: “What we
want from a monetary system is not to make people
holding money rich; we want it to facilitate
transactions and make the economy as a whole rich.”
“Due to the expectation that Bitcoin economy will
grow, people will tend to hoard the virtual currency
rather than spending it,” resulting in “money-
hoarding, deflation and depression.” On the other
hand, when Bitcoin first appeared, only geeks 1
would collect this virtual currency, leading to today’s
excessive concentration of Bitcoin. As reported by
Bloomberg, nearly 40% of the world’s Bitcoin is
owned by a thousand users. “They have a great
impact on the Bitcoin market. They are known as
whales.” If Bitcoin can serve as a store of value, it
means nearly 40% of the social wealth would be in
the hands of these one thousand people. Obviously, it
is unacceptable to almost any economy or society.
technologies and are willing to devote much of their time
in learning such technologies.
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Figure 1: Bitcoin’s Price History in the Previous Year (Sources: www.price.btcfans.com).
Even though Bitcoin cannot be a real currency
enabling economic and social circulation, such a high
concentration still contradicts Bitcoin’s decentralized
nature.
3.4 Means of Payments
Currency serves as a means of payment during debt
repayment. In fact, commodity exchange can be done
without cash. Deferred payment can be possible,
where the cash will be paid after a certain period.
Here currency serves as a means of payment. Its
function as a means of payment was first seen in
commodity exchange, and later expanded outside of
it. With the rise of deferred payment, various credit
currencies also appeared, such as promissory notes,
checks, money orders, banknotes. These diverse
credit currencies also function as means of payment.
In the meantime, the debts they represent can offset
each other, which has significantly reduced the
amount of currency being circulated in the market.
Based on Bitcoin’s trading mechanism, deferred
payments or credit behaviors are still impossible in
transactions of Bitcoin. First of all, the irreversibility
of Bitcoin transactions can effectively protect the
recipients’ privacy, but not the interests of the payers.
A third party, for instance, Alipay, is required to
protect their interests. To this end, one or several
centralized nodes could be generated to ensure the
smooth progress of transactions, which will also
contradict the decentralized nature of Bitcoin.
Secondly, whether it is direct financing or indirect
financing, the borrowers identity needs to be
confirmed and the borrowers credit information is
needed as the basis for risk evaluation. However,
Bitcoin’s high anonymity makes it almost impossible
for relevant information to be collected. If an
intermediary institution like a bank is brought in to
bridge the borrowers and lenders, it means another
central node has to arise. All these mean that although
it is technically feasible to finance through Bitcoin,
the action will undermine the virtual currency’s
decentralized nature. Financing difficulties will
become a major obstacle to Bitcoin’s development.
Thirdly, even if financing becomes possible in the
Bitcoin system, credit instruments like promissory
notes, checks, money orders, banknotes will be
created. The excessive use of credit instruments could
result in the forming of a central banking system, also
contrary to Bitcoin’s decentralization.
3.5
World Currency
When a currency serves as a universal equivalent in
the world market, it is also called a world currency.
Bitcoin knows no borders. Anyone can receive and
pay Bitcoin on any computer in every corner of the
world without government supervision. However, as
it is pointed out by Li, Bitcoin could never become a
world currency. If we want Bitcoin to become a world
currency, its “decentralization” has to be replaced by
“centralization”; its exchange value must remain
stable; its total amount shall be able to meet the
requirements of global economic development (Li,
2015). At present, Bitcoin is not able to serve the
function of being a world currency.
4 CONCLUSIONS
Bitcoin is a major breakthrough in currency
development. The devising of a reliable electronic
payment system provides valuable experience for
designing future payment systems and virtual
currency systems. Bitcoin’s inherent advantages
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provide a series of innovative ideas and methods for
solving the currency-related problems faced by all
countries around the globe, especially inflation.
Financial institutions of all countries can learn from
Bitcoin’s design concept. However, though Bitcoin
presents technical innovations and solutions to
traditional problems, it also brings some new and
serious problems that are not easy to be fixed, which
casts a shadow over its long-term development. As
the concept of Bitcoin went viral in recent years,
people’s attention has been shifted from this
technological innovation to its possible price bubble.
it is concluded that, instead of Bitcoin itself, we
should focus more on its underlying techniques,
namely blockchain technology and distributed
storage technology. The latter will surely play a
bigger role in future economic development and
provide more feasible solutions and technical support
for solving practical problems.
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