Digital Money
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Digital currency (digital money, electronic money or electronic currency) is any
currency A currency is a standardization of money in any form, in use or circulation as a medium of exchange, for example banknotes and coins. A more general definition is that a currency is a ''system of money'' in common use within a specific envi ...
,
money Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular country or socio-economic context. The primary functions which distinguish money are: m ...
, or money-like asset that is primarily managed, stored or exchanged on digital computer systems, especially over the
internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
. Types of digital currencies include
cryptocurrency A cryptocurrency (colloquially crypto) is a digital currency designed to work through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. Individual coin ownership record ...
,
virtual currency Virtual currency, or virtual money, is a digital currency that is typically unregulated, issued and usually controlled by its developers, and used and accepted electronically among the members of a specific virtual community as part of a virtua ...
and
central bank digital currency A central bank digital currency (CBDC; also called digital fiat currency or digital base money) is a digital currency issued by a central bank, rather than by a commercial bank. It is also a liability of the central bank, unless it is dividend-y ...
. Digital currency may be recorded on a
distributed database A distributed database is a database in which data is stored across different physical locations. It may be stored in multiple computers located in the same physical location (e.g. a data centre); or maybe dispersed over a computer network, netwo ...
on the internet, a centralized electronic
computer database In computing, a database is an organized collection of data or a type of data store based on the use of a database management system (DBMS), the software that interacts with end users, applications, and the database itself to capture and analy ...
owned by a company or bank, within digital files or even on a
stored-value card A stored-value card (SVC) or cash card is a payment card with a monetary value stored on the card itself, not in an external account maintained by a financial institution. This means no network access is required by the payment collection termi ...
. Digital currencies exhibit properties similar to traditional currencies, but generally do not have a classical physical form of
fiat currency Fiat money is a type of government-issued currency that is not backed by a precious metal, such as gold or silver, nor by any other tangible asset or commodity. Fiat currency is typically designated by the issuing government to be legal tender, ...
historically that can be held in the hand, like currencies with printed
banknotes A banknote or bank notealso called a bill (North American English) or simply a noteis a type of paper money that is made and distributed ("issued") by a bank of issue, payable to the bearer on demand. Banknotes were originally issued by commer ...
or minted
coins A coin is a small object, usually round and flat, used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in large quantities at a mint in order to facilitate trade. They are most often issued by ...
. However, they do have a physical form in an unclassical sense coming from the computer to computer and computer to human interactions and the information and processing power of the servers that store and keep track of money. This unclassical physical form allows nearly instantaneous transactions over the internet and vastly lowers the cost associated with distributing notes and coins: for example, of the types of money in the
UK economy The United Kingdom has a highly developed social market economy. From 2017 to 2025 it has been the sixth-largest national economy in the world measured by nominal gross domestic product (GDP), tenth-largest by purchasing power parity (PPP), a ...
, 3% are notes and coins, and 79% as electronic money (in the form of bank deposits). Usually not issued by a governmental body, virtual currencies are not considered a
legal tender Legal tender is a form of money that Standard of deferred payment, courts of law are required to recognize as satisfactory payment in court for any monetary debt. Each jurisdiction determines what is legal tender, but essentially it is anything ...
and they enable
ownership Ownership is the state or fact of legal possession and control over property, which may be any asset, tangible or intangible. Ownership can involve multiple rights, collectively referred to as '' title'', which may be separated and held by dif ...
transfer across governmental
border Borders are generally defined as geography, geographical boundaries, imposed either by features such as oceans and terrain, or by polity, political entities such as governments, sovereign states, federated states, and other administrative divisio ...
s. This type of currency may be used to buy physical
goods In economics, goods are anything that is good, usually in the sense that it provides welfare or utility to someone. Alan V. Deardorff, 2006. ''Terms Of Trade: Glossary of International Economics'', World Scientific. Online version: Deardorffs ...
and
services Service may refer to: Activities * Administrative service, a required part of the workload of university faculty * Civil service, the body of employees of a government * Community service, volunteer service for the benefit of a community or a ...
, but may also be restricted to certain
communities A community is a Level of analysis, social unit (a group of people) with a shared socially-significant characteristic, such as place (geography), place, set of Norm (social), norms, culture, religion, values, Convention (norm), customs, or Ide ...
such as for use inside an online game. Digital money can either be centralized, where there is a central point of control over the money supply (for instance, a bank), or
decentralized Decentralization or decentralisation is the process by which the activities of an organization, particularly those related to planning and decision-making, are distributed or delegated away from a central, authoritative location or group and gi ...
, where the control over the money supply is predetermined or agreed upon democratically.


History

Precursory ideas for digital currencies were presented in electronic payment methods such as the
Sabre (travel reservation system) Sabre Global Distribution System is a travel reservation system owned by Sabre Corporation, which allows travel agents and companies to search, price, book, and ticket travel services provided by airlines, hotels, car rental companies, rail prov ...
. In 1983, a research paper titled "Blind Signatures for Untraceable Payments" by
David Chaum David Lee Chaum (born 1955) is an American computer scientist, List of cryptographers, cryptographer, and inventor. He is known as a pioneer in cryptography and privacy-preserving technologies, and widely recognized as the inventor of Digital cur ...
introduced the idea of digital cash. In 1989, he founded
DigiCash DigiCash Inc. was an electronic money corporation founded by David Chaum in 1989. DigiCash transactions were unique in that they were anonymous due to a number of cryptographic protocols developed by its founder. DigiCash declared bankruptcy in ...
, an electronic cash company, in Amsterdam to commercialize the ideas in his research. It filed for bankruptcy in 1998.
e-gold E-gold or eGold was a digital gold currency operated by Gold & Silver Reserve Inc. (G&SR) that allowed users to make payments, which it called "spends", in grams of gold, silver, and other precious metals. E-gold was launched in 1996 and grew to ...
was the first widely used Internet money, introduced in 1996, and grew to several million users before the US Government shut it down in 2008. e-gold has been referenced to as "digital currency" by both US officials and academia. In 1997, Coca-Cola offered buying from vending machines using mobile payments.
PayPal PayPal Holdings, Inc. is an American multinational financial technology company operating an online payments system in the majority of countries that support E-commerce payment system, online money transfers; it serves as an electronic alter ...
launched its USD-denominated service in 1998. In 2009,
bitcoin Bitcoin (abbreviation: BTC; Currency symbol, sign: ₿) is the first Decentralized application, decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity published a white paper under ...
was launched, which marked the start of decentralized
blockchain The blockchain is a distributed ledger with growing lists of Record (computer science), records (''blocks'') that are securely linked together via Cryptographic hash function, cryptographic hashes. Each block contains a cryptographic hash of th ...
-based digital currencies with no central server, and no tangible assets held in reserve. Also known as cryptocurrencies, blockchain-based digital currencies proved resistant to attempt by government to regulate them, because there was no central organization or person with the power to turn them off. Origins of digital currencies date back to the 1990s
Dot-com bubble The dot-com bubble (or dot-com boom) was a stock market bubble that ballooned during the late-1990s and peaked on Friday, March 10, 2000. This period of market growth coincided with the widespread adoption of the World Wide Web and the Interne ...
. Another known digital currency service was
Liberty Reserve Liberty Reserve was a Costa Rica-based centralized digital currency service that billed itself as the "oldest, safest and most popular payment processor, serving millions all around a world". The site had over one million users when it was shut ...
, founded in 2006; it lets users convert dollars or euros to Liberty Reserve Dollars or Euros, and exchange them freely with one another at a 1% fee. Several digital currency operations were reputed to be used for Ponzi schemes and money laundering, and were prosecuted by the U.S. government for operating without MSB licenses. Q coins or QQ coins, were used as a type of commodity-based digital currency on
Tencent QQ Tencent QQ (), also known as QQ, is an instant messaging software service and web portal developed by the Mainland Chinese technology company Tencent. QQ offers services that provide online social games, music, shopping, microblogging, movies, ...
's messaging platform and emerged in early 2005. Q coins were so effective in China that they were said to have had a destabilizing effect on the
Chinese yuan The renminbi ( ; currency symbol, symbol: Yen and yuan sign, ¥; ISO 4217, ISO code: CNY; abbreviation: RMB), also known as the Chinese yuan, is the official currency of the China, People's Republic of China. The renminbi is issued by the Peop ...
currency due to speculation. Recent interest in
cryptocurrencies A cryptocurrency (colloquially crypto) is a digital currency designed to work through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. Individual coin ownership records ...
has prompted renewed interest in digital currencies, with
bitcoin Bitcoin (abbreviation: BTC; Currency symbol, sign: ₿) is the first Decentralized application, decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity published a white paper under ...
, introduced in 2008, becoming the most widely used and accepted digital currency.


Sub-types of digital currency and comparisons


Digital currency as a specific type and as a meta-group name

Digital currency is a term that refers to a specific type of electronic currency with specific properties. Digital currency is also a term used to include the meta-group of sub-types of digital currency, the specific meaning can only be determined within the specific legal or contextual case. Legally and technically, there already are a myriad of legal definitions of digital currency and the many digital currency sub-types. Combining different possible properties, there exists an extensive number of implementations creating many and numerous sub-types of digital currency. Many governmental jurisdictions have implemented their own unique definition for digital currency, virtual currency, cryptocurrency, e-money, network money, e-cash, and other types of digital currency. Within any specific government jurisdiction, different agencies and regulators define different and often conflicting meanings for the different types of digital currency based on the specific properties of a specific currency type or sub-type.


Digital versus virtual currency

A virtual currency has been defined in 2012 by the
European Central Bank The European Central Bank (ECB) is the central component of the Eurosystem and the European System of Central Banks (ESCB) as well as one of seven institutions of the European Union. It is one of the world's Big Four (banking)#International ...
as "a type of unregulated, digital money, which is issued and usually controlled by its developers, and used and accepted among the members of a specific
virtual community A virtual community is a social network of individuals who connect through specific social media, potentially crossing geographical and political boundaries in order to pursue mutual interests or goals. Some of the most pervasive virtual commu ...
". The
US Department of Treasury The Department of the Treasury (USDT) is the national treasury and finance department of the federal government of the United States. It is one of 15 current U.S. government departments. The department oversees the Bureau of Engraving and ...
in 2013 defined it more tersely as "a medium of exchange that operates like a currency in some environments, but does not have all the attributes of real currency". The US Department of Treasury also stated that, "Virtual currency does not have legal-tender status in any jurisdiction." According to the
European Central Bank The European Central Bank (ECB) is the central component of the Eurosystem and the European System of Central Banks (ESCB) as well as one of seven institutions of the European Union. It is one of the world's Big Four (banking)#International ...
's 2015 "Virtual currency schemes – a further analysis" report, virtual currency is a digital representation of value, not issued by a central bank, credit institution or e-money institution, which, in some circumstances, can be used as an alternative to money. In the previous report of October 2012, the virtual currency was defined as a type of unregulated, digital money, which is issued and usually controlled by its developers, and used and accepted among the members of a specific virtual community. According to the
Bank for International Settlements The Bank for International Settlements (BIS) is an international financial institution which is owned by member central banks. Its primary goal is to foster international monetary and financial cooperation while serving as a bank for central bank ...
' November 2015 "Digital currencies" report, it is an asset represented in digital form and having some monetary characteristics. Digital currency can be denominated to a sovereign currency and issued by the issuer responsible to redeem digital money for cash. In that case, digital currency represents electronic money (e-money). Digital currency denominated in its own units of value or with decentralized or automatic issuance will be considered as a virtual currency. As such, bitcoin is a digital currency but also a type of virtual currency. bitcoin and its alternatives are based on cryptographic algorithms, so these kinds of virtual currencies are also called cryptocurrencies.


Digital versus cryptocurrency

Cryptocurrency A cryptocurrency (colloquially crypto) is a digital currency designed to work through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. Individual coin ownership record ...
is a sub-type of digital currency and a digital
asset In financial accounting, an asset is any resource owned or controlled by a business or an economic entity. It is anything (tangible or intangible) that can be used to produce positive economic value. Assets represent value of ownership that can b ...
that relies on
cryptography Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), ...
to chain together digital signatures of asset transfers,
peer-to-peer Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the network, forming a peer-to-peer network of Node ...
networking and
decentralization Decentralization or decentralisation is the process by which the activities of an organization, particularly those related to planning and decision-making, are distributed or delegated away from a central, authoritative location or group and gi ...
. In some cases a
proof-of-work Proof of work (also written as proof-of-work, an abbreviated PoW) is a form of Cryptography, cryptographic proof (truth), proof in which one party (the ''prover'') proves to others (the ''verifiers'') that a certain amount of a specific computatio ...
or
proof-of-stake Proof-of-stake (PoS) protocols are a class of consensus mechanisms for blockchains that work by selecting validators in proportion to their quantity of holdings in the associated cryptocurrency. This is done to avoid the computational cost of ...
scheme is used to create and manage the currency.What does Cryptocurrency mean?
technopedia, 01-07-2013
Cryptocurrencies can allow electronic money systems to be decentralized. When implemented with a blockchain, the digital ledger system or record keeping system uses
cryptography Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), ...
to edit separate shards of database entries that are distributed across many separate servers. The first and most popular system is
bitcoin Bitcoin (abbreviation: BTC; Currency symbol, sign: ₿) is the first Decentralized application, decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity published a white paper under ...
, a peer-to-peer electronic monetary system based on cryptography.


Digital versus traditional currency

Most of the traditional
money supply In macroeconomics, money supply (or money stock) refers to the total volume of money held by the public at a particular point in time. There are several ways to define "money", but standard measures usually include currency in circulation (i ...
is
bank money Demand deposits or checkbook money are funds held in demand accounts in commercial banks. These account balances are usually considered money and form the greater part of the narrowly defined money supply of a country. Simply put, these are depo ...
held on computers. They are considered digital currency in some cases. One could argue that our increasingly cashless society means that all currencies are becoming digital currencies, but they are not presented to us as such.


Types of systems


Centralized systems

Currency can be exchanged electronically using
debit card A debit card, also known as a check card or bank card, is a payment card that can be used in place of cash to make purchases. The card usually consists of the bank's name, a card number, the cardholder's name, and an expiration date, on either ...
s and credit cards using
electronic funds transfer at point of sale Electronic funds transfer at point of sale, abbreviated as EFTPOS (), is a type of payment transaction in which electronic funds transfers (EFT) are processed at a point of sale (POS) system or payment terminal usually via payment methods such as ...
.


Mobile digital wallets

A number of electronic money systems use
contactless payment Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for making sec ...
transfer in order to facilitate easy payment and give the payee more confidence in not letting go of their electronic wallet during the transaction. * In 1994
Mondex Mondex was a smart card electronic cash system, implemented as a stored-value card and owned by Mastercard. Pioneered by two bankers from NatWest in 1990, it was spun-off to a separate consortium later on, then sold to Mastercard. Mondex all ...
and
National Westminster Bank National Westminster Bank, trading as NatWest, is a major retail and commercial bank in the United Kingdom based in London, England. It was established in 1968 by the merger of National Provincial Bank and Westminster Bank. In 2000, it becam ...
provided an "electronic purse" to residents of
Swindon Swindon () is a town in Wiltshire, England. At the time of the 2021 Census the population of the built-up area was 183,638, making it the largest settlement in the county. Located at the northeastern edge of the South West England region, Swi ...
* In about 2005
Telefónica , S.A. () is a Spanish multinational telecommunications company with registered office and headquarters located in two different places, both in Madrid, Spain. It is one of the largest telephone operators and mobile network providers in the ...
and BBVA Bank launched a payment system in
Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
called Mobipay which used simple
short message service Short Message Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile phones exchange short text messages, ...
facilities of
feature phones Feature may refer to: Computing * Feature recognition, could be a hole, pocket, or notch * Feature (computer vision), could be an edge, corner or blob * Feature (machine learning), in statistics: individual measurable properties of the phenome ...
intended for pay-as-you-go services including taxis and pre-pay phone recharges via a BBVA current bank account debit. * In January 2010,
Venmo Venmo is an American mobile payment service founded in 2009 and owned by PayPal since 2013. Venmo is aimed at users who wish to split their bills. Account holders can transfer funds to others via a mobile phone app; both the sender and receiver ...
launched as a mobile payment system through SMS, which transformed into a social app where friends can pay each other for minor expenses like a cup of coffee, rent and pay a share of the restaurant bill when one has forgotten their wallet. It is popular with college students, but has some security issues. It can be linked to a bank account, credit/debit card or have a loaded value to limit the amount of loss in case of a security breach. Credit cards and non-major debit cards incur a 3% processing fee. * On 19 September 2011,
Google Wallet Google Wallet (or simply Wallet) is a digital wallet platform developed by Google. It is available for the Android, Wear OS, and Fitbit OS operating systems, and was announced on May 11, 2022, at the 2022 Google I/O keynote. It began rollin ...
released in the United States to make it easy to carry all one's credit/debit cards on a phone. * In 2012
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
's O2 (owned by
Telefónica , S.A. () is a Spanish multinational telecommunications company with registered office and headquarters located in two different places, both in Madrid, Spain. It is one of the largest telephone operators and mobile network providers in the ...
) launched Easytrip to pay road tolls which were charged to the mobile phone account or prepay credit. * The UK's O2 invented O2 Wallet at about the same time. The wallet can be charged with regular bank accounts or cards and discharged by participating retailers using a technique known as 'money messages'. The service closed in 2014. * On 9 September 2014,
Apple Pay Apple Pay is a mobile payment service by Apple Inc. that allows users to make payments in person, in iOS apps, and on the web. Supported on iPhone, Apple Watch, iPad, Mac, and Vision Pro, Apple Pay digitizes and can replace a credit or debi ...
was announced at the
iPhone 6 The iPhone 6 and iPhone 6 Plus are smartphones that were developed and marketed by Apple Inc. They are the eighth generation of the iPhone, succeeding the iPhone 5, iPhone 5c and iPhone 5s, and were announced on September 9, 2014, and rel ...
event. In October 2014 it was released as an update to work on
iPhone 6 The iPhone 6 and iPhone 6 Plus are smartphones that were developed and marketed by Apple Inc. They are the eighth generation of the iPhone, succeeding the iPhone 5, iPhone 5c and iPhone 5s, and were announced on September 9, 2014, and rel ...
and
Apple Watch The Apple Watch is a brand of smartwatch products developed and marketed by Apple Inc., Apple. It incorporates activity tracker, fitness tracking, Health (Apple), health-oriented capabilities, and wireless telecommunication, and integrates wit ...
. It is very similar to
Google Wallet Google Wallet (or simply Wallet) is a digital wallet platform developed by Google. It is available for the Android, Wear OS, and Fitbit OS operating systems, and was announced on May 11, 2022, at the 2022 Google I/O keynote. It began rollin ...
, but for Apple devices only.


Central bank digital currency

A
central bank digital currency A central bank digital currency (CBDC; also called digital fiat currency or digital base money) is a digital currency issued by a central bank, rather than by a commercial bank. It is also a liability of the central bank, unless it is dividend-y ...
(CBDC) is a form of universally accessible digital money in a nation and holds the same value as the country's paper currency. Like a
cryptocurrency A cryptocurrency (colloquially crypto) is a digital currency designed to work through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. Individual coin ownership record ...
, a CBCD is held in the form of tokens. CBDCs are different from regular digital cash forms like in online bank accounts because CBDCs are established through the central bank within a country, with liabilities held by one's government, rather than from a commercial bank. Approximately nine countries have already established a CBDC, with interest in the system increasing highly throughout the world. In these nations, CBDCs have been used as a form of exchange and a way for governments to try to prevent risks from occurring within their
financial system A financial system is a system that allows the exchange of funds between financial market participants such as lenders, investors, and borrowers. Financial systems operate at national and global levels. Financial institutions consist of comple ...
s. A major problem with central bank digital currencies is deciding whether the currency should be easily trackable. If it's traceable, the government has more control than it currently does. Additionally, there's a technical aspect to consider: whether CBDCs should be based on tokens or accounts and how much anonymity users should have.


Decentralized systems

Digital Currency has been implemented in some cases as a
decentralized Decentralization or decentralisation is the process by which the activities of an organization, particularly those related to planning and decision-making, are distributed or delegated away from a central, authoritative location or group and gi ...
system of any combination of currency
issuance Securitization is the financial practice of pooling various types of contractual debt such as residential mortgages, commercial mortgages, auto loans, or credit card debt obligations (or other non-debt assets which generate receivables) and sellin ...
,
ownership Ownership is the state or fact of legal possession and control over property, which may be any asset, tangible or intangible. Ownership can involve multiple rights, collectively referred to as '' title'', which may be separated and held by dif ...
record, ownership transfer
authorization Authorization or authorisation (see American and British English spelling differences#-ise, -ize (-isation, -ization), spelling differences), in information security, computer security and identity management, IAM (Identity and Access Managemen ...
and validation, and currency storage. Per the
Bank for International Settlements The Bank for International Settlements (BIS) is an international financial institution which is owned by member central banks. Its primary goal is to foster international monetary and financial cooperation while serving as a bank for central bank ...
(BIS), "These schemes do not distinguish between users based on location, and therefore allow value to be transferred between users across borders. Moreover, the speed of a transaction is not conditional on the location of the payer and payee."


Law

Since 2001, the European Union has implemented the E-Money Directive "on the taking up, pursuit and prudential supervision of the business of electronic money institutions" last amended in 2009. In the United States, electronic money is governed by Article 4A of the
Uniform Commercial Code The Uniform Commercial Code (UCC), first published in 1952, is one of a number of uniform acts that have been established as law with the goal of harmonizing the laws of sales and other commercial transactions across the United States through U ...
for wholesale transactions and the
Electronic Fund Transfer Act The Electronic Fund Transfer Act was passed by the U.S. Congress in 1978 and signed by President Jimmy Carter, to establish the rights and liabilities of consumers as well as the responsibilities of all participants in electronic funds transfer a ...
for consumer transactions. Provider's responsibility and consumer's liability are regulated under Regulation E.


Regulation

Virtual currencies pose challenges for central banks, financial regulators, departments or ministries of finance, as well as fiscal authorities and statistical authorities.


Adoption by governments

As of 2016, over 24 countries are investing in distributed ledger technologies (DLT) with $1.4bn in investments. In addition, over 90
central bank A central bank, reserve bank, national bank, or monetary authority is an institution that manages the monetary policy of a country or monetary union. In contrast to a commercial bank, a central bank possesses a monopoly on increasing the mo ...
s are engaged in DLT discussions, including implications of a central bank issued digital currency. *
Hong Kong Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the wor ...
's
Octopus card The Octopus card ( zh, t=, j=baat3 daat6 tung1, is a reusable Contactless payment, contactless stored value smart card for making Electronic money, electronic payments in online or offline systems in Hong Kong. Launched in September 1997 to ...
system: Launched in 1997 as an electronic purse for public transportation, is the most successful and mature implementation of contactless smart cards used for mass transit payments. After only 5 years, 25 percent of Octopus card transactions are unrelated to transit, and accepted by more than 160 merchants. *
London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
Transport's
Oyster card The Oyster card is a Payment#Types_and_methods_of_payment, payment method for public transport in London and some surrounding areas. A standard Oyster card is a blue ISO/IEC 7810, credit-card-sized Stored-value card, stored-value contactless ...
system: Oyster is a plastic smartcard that can hold pay-as-you-go credit, Travelcards and Bus & Tram season tickets. An Oyster card can be used to travel on bus, Tube, tram, DLR, London Overground and most National Rail services in London. *
Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
's
FeliCa FeliCa is a contactless RFID smart card system from Sony in Japan, primarily used in electronic money cards. The name stands for ''Felicity Card''. First utilized in the Octopus card system in Hong Kong, the technology is used in a variety of cards ...
: A contactless RFID
smart card A smart card (SC), chip card, or integrated circuit card (ICC or IC card), is a card used to control access to a resource. It is typically a plastic credit card-sized card with an Embedded system, embedded integrated circuit (IC) chip. Many smart ...
, used in a variety of ways such as in ticketing systems for public transportation, e-money, and residence door keys. * The
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
'
Chipknip Chipknip (a portmanteau of ''Smart card, chip card'' and ''knip'', Dutch for coin purse, purse) was a Stored-value card, stored-value payment card system used in the Netherlands. Based on the Belgian Proton (debit card), Proton system, it was sta ...
: As an electronic cash system used in the Netherlands, all ATM cards issued by the Dutch banks had value that could be loaded via Chipknip loading stations. For people without a bank, pre-paid Chipknip cards could be purchased at various locations in the Netherlands. As of 1 January 2015, payment can no longer be made with Chipknip. *
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
's
Proton A proton is a stable subatomic particle, symbol , Hydron (chemistry), H+, or 1H+ with a positive electric charge of +1 ''e'' (elementary charge). Its mass is slightly less than the mass of a neutron and approximately times the mass of an e ...
: An
electronic purse Digital currency (digital money, electronic money or electronic currency) is any currency, money, or money-like asset that is primarily managed, stored or exchanged on digital computer systems, especially over the internet. Types of digital cu ...
application for
debit cards A debit card, also known as a check card or bank card, is a payment card that can be used in place of cash to make purchases. The card usually consists of the bank's name, a card number, the cardholder's name, and an expiration date, on either ...
in Belgium. Introduced in February 1995, as a means to replace cash for small transactions. The system was retired on 31 December 2014. In March 2018, the
Marshall Islands The Marshall Islands, officially the Republic of the Marshall Islands, is an island country west of the International Date Line and north of the equator in the Micronesia region of the Northwestern Pacific Ocean. The territory consists of 29 c ...
became the first country to issue their own cryptocurrency and certify it as legal tender; the currency is called the "sovereign".


United States of America


US Commodity Futures Trading Commission guidance

The US
Commodity Futures Trading Commission The Commodity Futures Trading Commission (CFTC) is an Independent agencies of the United States government, independent agency of the US government created in 1974 that regulates the U.S. derivatives markets, which includes futures contract, fut ...
(CFTC) has determined virtual currencies are properly defined as commodities in 2015. The CFTC warned investors against
pump and dump Pump and dump (P&D) is a form of securities fraud that involves artificially inflating the price of an owned stock through false and misleading positive statements (pump), in order to sell the cheaply purchased stock at a higher price (dump). O ...
schemes that use virtual currencies.


US Internal Revenue Service guidance

The US Internal Revenue Service (IRS) ruling Notice 2014-21 defines any virtual currency, cryptocurrency and digital currency as property; gains and losses are taxable within standard property policies.


US Treasury guidance

On 20 March 2013, the Financial Crimes Enforcement Network issued a guidance to clarify how the U.S.
Bank Secrecy Act The Bank Secrecy Act of 1970 (BSA), also known as the Currency and Foreign Transactions Reporting Act, is a U.S. law requiring financial institutions in the United States to assist U.S. government agencies in detecting and preventing money laun ...
applied to persons creating, exchanging, and transmitting virtual currencies.


US Securities and Exchange Commission guidance

In May 2014 the US
Securities and Exchange Commission The United States Securities and Exchange Commission (SEC) is an independent agency of the United States federal government, created in the aftermath of the Wall Street crash of 1929. Its primary purpose is to enforce laws against market m ...
(SEC) "warned about the hazards of bitcoin and other virtual currencies".


New York state regulation

In July 2014, the
New York State Department of Financial Services The New York State Department of Financial Services (DFS or NYSDFS) is the department of the New York state government responsible for regulating financial services and products, including those subject to the New York insurance, banking and fin ...
proposed the most comprehensive regulation of virtual currencies to date, commonly called
BitLicense A BitLicense is the common term used for a business license for virtual currency activities, issued by the New York State Department of Financial Services (NYSDFS) under regulations designed for companies. The regulations are limited to activities ...
. It has gathered input from bitcoin supporters and the financial industry through public hearings and a comment period until 21 October 2014 to customize the rules. The proposal per NY DFS press release "sought to strike an appropriate balance that helps protect consumers and root out illegal activity". It has been criticized by smaller companies to favor established institutions, and Chinese bitcoin exchanges have complained that the rules are "overly broad in its application outside the United States".


Canada

The
Bank of Canada The Bank of Canada (BoC; ) is a Crown corporations of Canada, Crown corporation and Canada's central bank. Chartered in 1934 under the ''Bank of Canada Act'', it is responsible for formulating Canada's monetary policy,OECD. OECD Economic Surve ...
has explored the possibility of creating a version of its currency on the blockchain. The Bank of Canada teamed up with the nation's five largest banks – and the blockchain consulting firm R3 – for what was known as Project Jasper. In a simulation run in 2016, the central bank issued CAD-Coins onto a blockchain similar
Ethereum Ethereum is a decentralized blockchain with smart contract functionality. Ether (abbreviation: ETH) is the native cryptocurrency of the platform. Among cryptocurrencies, ether is second only to bitcoin in market capitalization. It is open-s ...
. The banks used the CAD-Coins to exchange money the way they do at the end of each day to settle their master accounts.


China

In 2016, Fan Yifei, a deputy governor of China's central bank, the
People's Bank of China The People's Bank of China (officially PBC and unofficially PBOC) is the central bank of the People's Republic of China. It is responsible for carrying out monetary policy as determined by the ''PRC People's Bank Law'' and the ''PRC Commercia ...
(PBOC), wrote that "the conditions are ripe for digital currencies, which can reduce operating costs, increase efficiency and enable a wide range of new applications". According to Fan Yifei, the best way to take advantage of the situation is for central banks to take the lead, both in supervising private digital currencies and in developing digital legal tender of their own. In October 2019, the PBOC announced that a digital
renminbi The renminbi ( ; currency symbol, symbol: Yen and yuan sign, ¥; ISO 4217, ISO code: CNY; abbreviation: RMB), also known as the Chinese yuan, is the official currency of the China, People's Republic of China. The renminbi is issued by the Peop ...
would be released after years of preparation. The version of the currency, known as DCEP (
Digital Currency Electronic Payment Digital renminbi ( zh, 数字人民币; also abbreviated as digital RMB and e-CNY), or Digital Currency Electronic Payment (DCEP, ), is a central bank digital currency issued by China's central bank, the People's Bank of China. It is the first digi ...
), is based on
cryptocurrency A cryptocurrency (colloquially crypto) is a digital currency designed to work through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. Individual coin ownership record ...
which can be "decoupled" from the banking system. The announcement received a variety of responses: some believe it is more about domestic control and surveillance. In December 2020, the PBOC distributed million worth of digital renminbi to the residents of
Suzhou Suzhou is a major prefecture-level city in southern Jiangsu province, China. As part of the Yangtze Delta megalopolis, it is a major economic center and focal point of trade and commerce. Founded in 514 BC, Suzhou rapidly grew in size by the ...
through a lottery program to further promote the government-backed digital currency. Recipients of the currency could make both offline and online purchases, expanding on an earlier trial that did not require internet connection through the inclusion of online stores in the program. Around 20,000 transactions were reported by the e-commerce company
JD.com JD.com, Inc., also known as JINGDONG (), formerly called 360buy,
, Retrieved 3 December 2013
in the first 24 hours of the trial. Contrary to other
online payment An e-commerce payment system (or an electronic payment system) facilitates the acceptance of electronic payment for offline transfer, also known as a subcomponent of electronic data interchange (EDI), e-commerce payment systems have become increa ...
platforms such as
Alipay Alipay () is a third-party mobile and online payment platform, established in Hangzhou, China in February 2004 by Alibaba Group and its founder Jack Ma. In 2015, Alipay moved its headquarters to Pudong, Shanghai, although its parent company ...
or
WeChat Pay WeChat Pay, officially referred to as Weixin Pay ( zh, c=微信支付, p=Wēixìn Zhīfù) in China, is a mobile payment and digital wallet service by WeChat based in China that allows users to make mobile payments and online transactions. As ...
, the digital currency does not have transaction fees.


Denmark

The Danish government proposed getting rid of the obligation for selected retailers to accept payment in cash, moving the country closer to a "cashless" economy. The Danish Chamber of Commerce is backing the move. Nearly a third of the Danish population uses
MobilePay MobilePay is a mobile payment application used in Denmark and Finland. The service allows payments by means of a smartphone application and was first introduced in 2013 by Danske Bank. It was introduced to Finland later in the same year and sinc ...
, a smartphone application for transferring money.


Ecuador

A law passed by the
National Assembly of Ecuador The National Assembly () is the unicameral legislature of Ecuador. It replaced the National Congress in 2009 following reforms under the 2008 Constitution. Within Ecuador, the National Assembly has the power to pass laws, while appointment of ...
gives the government permission to make payments in electronic currency and proposes the creation of a national digital currency. "Electronic money will stimulate the economy; it will be possible to attract more Ecuadorian citizens, especially those who do not have checking or savings accounts and credit cards alone. The electronic currency will be backed by the assets of the Central Bank of Ecuador", the National Assembly said in a statement. In December 2015, Sistema de Dinero Electrónico ("electronic money system") was launched, making Ecuador the first country with a state-run electronic payment system.


El Salvador

On 9 June 2021, the
Legislative Assembly of El Salvador The Legislative Assembly () is the legislative branch of the government of El Salvador. History The organization was founded in 1824 as the Central American Congress (). Structure The Salvadoran legislature is a unicameral body. Until ...
has become the first country in the world to officially classify
bitcoin Bitcoin (abbreviation: BTC; Currency symbol, sign: ₿) is the first Decentralized application, decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity published a white paper under ...
as legal currency. Starting 90 days after approval, every business must accept
bitcoin Bitcoin (abbreviation: BTC; Currency symbol, sign: ₿) is the first Decentralized application, decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity published a white paper under ...
as legal tender for goods or services, unless it is unable to provide the technology needed to do the transaction.


Netherlands

The
Dutch central bank De Nederlandsche Bank (, , abbr. DNB) is the national central bank for the Netherlands within the Eurosystem. It was the Dutch central bank from 1814 to 1998, issuing the guilder. Since 2014, it has also been the country's national competent auth ...
is experimenting with a blockchain-based virtual currency called "DNBCoin".


India

The Unified Payments Interface (UPI) is a real-time payment system for instant money transfers between any two bank accounts held in participating banks in India. The interface has been developed by the National Payments Corporation of India and is regulated by the Reserve Bank of India. This digital payment system is available 24 hours a day, every day of the year. UPI is agnostic to the type of user and is used for person to person, person to business, business to person and business to business transactions. Transactions can be initiated by the payer or the payee. To identify a bank account it uses a unique Virtual Payment Address (VPA) of the type 'accountID@bankID'. The VPA can be assigned by the bank, but can also be self specified just like an email address. The simplest and most common form of VPA is 'mobilenumber@upi'. Money can be transferred from one VPA to another or from one VPA to any bank account in a participating bank using account number and bank branch details. Transfers can be inter-bank or intra-bank. UPI has no intermediate holding pond for money. It withdraws funds directly from the bank account of the sender and deposits them directly into the recipient's bank account whenever a transaction is requested. A sender can initiate and authorise a transfer using a two step secure process: login using a pass code → initiate → verify using a passcode. A receiver can initiate a payment request on the system to send the payer a notification or by presenting a QR code. On receiving the request, the payer can decline or confirm the payment using the same two step process: login → confirm → verify. The system is extraordinarily user friendly to the extent that even technophobes and barely literate users are adopting it in huge numbers.


Russia

Government-controlled
Sberbank of Russia The Public JSC Sberbank (, initially a contraction of ) is a Russian majority state-owned banking and financial services company headquartered in Moscow. As the Russian successor entity of the State Labor Savings Banks System of the USSR, it was ...
owns YooMoney – electronic payment service and digital currency of the same name.


Sweden

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...
is in the process of replacing all of its physical banknotes, and most of its coins by mid-2017. However, the new banknotes and coins of the
Swedish krona The krona (; plural: ''kronor''; sign: kr; code: SEK) is the currency of Sweden. Both the ISO code "SEK" and currency sign "kr" are in common use for the krona; the former precedes or follows the value, the latter usually follows it but, espec ...
will probably be circulating at about half the 2007 peak of 12,494 kronor per capita. The
Riksbank Sveriges Riksbank, or simply the Riksbank, is the central bank of Sweden. Founded in 1668, it is the world's oldest surviving central bank, and the third oldest bank in continuous operation. Prior to World War I, it was also the only state- ...
is planning to begin discussions of an electronic currency issued by the central bank to which "is not to replace cash, but to act as complement to it". Deputy Governor
Cecilia Skingsley Marie Annie Cecilia Skingsley (; born 18 August 1968) is a Swedish banker, economist and journalist who is the incoming Governor of Stockholm County, expected to take office on 16 June 2025. She previously served on the executive board of govern ...
states that cash will continue to spiral out of use in Sweden, and while it is currently fairly easy to get cash in Sweden, it is often very difficult to deposit it into bank accounts, especially in rural areas. No decision has been currently made about the decision to create "e-krona". In her speech, Skingsley states: "The first question is whether e-krona should be booked in accounts or whether the ekrona should be some form of a digitally transferable unit that does not need an underlying account structure, roughly like cash." Skingsley also states: "Another important question is whether the Riksbank should issue e-krona directly to the general public or go via the banks, as we do now with banknotes and coins." Other questions will be addressed like interest rates, should they be positive, negative, or zero?


Switzerland

In 2016, a
city government A city is a human settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agree ...
first accepted digital currency in payment of city fees.
Zug, Switzerland Zug (Standard German: , Alemannic German: ; ; ; ; )Named in the 16th century. is the largest town and capital of the Swiss canton of Zug. Zug is renowned as a hub for some of the wealthiest individuals in the world and is known for its high co ...
, added bitcoin as a means of paying small amounts, up to , in a test and an attempt to advance Zug as a region that is advancing future technologies. In order to reduce risk, Zug immediately converts any bitcoin received into the Swiss currency.
Swiss Federal Railways Swiss Federal Railways (, SBB; , CFF; , FFS) is the national railway company of Switzerland. The company was founded in 1902 and is headquartered in Bern. It used to be a State-owned enterprise, government institution, but since 1999 it has be ...
, government-owned railway company of Switzerland, sells bitcoins at its ticket machines.


UK

In 2016, the UK's chief scientific adviser, Sir Mark Walport, advised the government to consider using a blockchain-based digital currency. The chief economist of
Bank of England The Bank of England is the central bank of the United Kingdom and the model on which most modern central banks have been based. Established in 1694 to act as the Kingdom of England, English Government's banker and debt manager, and still one ...
, the central bank of the United Kingdom, proposed the abolition of paper currency. The Bank has also taken an interest in blockchain. In 2016 it has embarked on a multi-year research programme to explore the implications of a central bank issued digital currency. The Bank of England has produced several research papers on the topic. One suggests that the economic benefits of issuing a digital currency on a distributed ledger could add as much as 3 percent to a country's economic output. The Bank said that it wanted the next version of the bank's basic software infrastructure to be compatible with distributed ledgers.


Adoption by financial actors

Government attitude dictates the tendency among established heavy financial actors that both are risk-averse and conservative. None of these offered services around cryptocurrencies and much of the criticism came from them. "The first mover among these has been
Fidelity Investments Fidelity Investments, formerly known as Fidelity Management & Research (FMR), owned by FMR LLC and headquartered in Boston, Massachusetts, provides financial services. Established in 1946, the company is one of the largest asset managers in the ...
,
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
based
Fidelity Digital Assets Fidelity is the quality of faithfulness or loyalty. Its original meaning regarded duty in a broader sense than the related concept of ''fealty''. Both derive from the Latin word , meaning "faithful or loyal". In the City of London financial mar ...
LLC will provide enterprise-grade custody solutions, a cryptocurrency trading execution platform and institutional advising services 24 hours a day, seven days a week designed to align with blockchain's always-on trading cycle". It will work with
bitcoin Bitcoin (abbreviation: BTC; Currency symbol, sign: ₿) is the first Decentralized application, decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown entity published a white paper under ...
and
Ethereum Ethereum is a decentralized blockchain with smart contract functionality. Ether (abbreviation: ETH) is the native cryptocurrency of the platform. Among cryptocurrencies, ether is second only to bitcoin in market capitalization. It is open-s ...
with general availability scheduled for 2019.


Hard vs. soft digital currencies

Hard electronic currency does not have the ability to be disputed or reversed when used. It is nearly impossible to reverse a transaction, justified or not. It is very similar to cash. Contrarily, soft electronic currency payments can be reversed. Usually, when a payment is reversed there is a "clearing time." A hard currency can be "softened" with a third-party service.


Criticism

Many existing digital currencies have not yet seen widespread usage, and may not be easily used or exchanged. Banks generally do not accept or offer services for them. There are concerns that cryptocurrencies are extremely risky due to their very high volatility and potential for
pump and dump Pump and dump (P&D) is a form of securities fraud that involves artificially inflating the price of an owned stock through false and misleading positive statements (pump), in order to sell the cheaply purchased stock at a higher price (dump). O ...
schemes. Regulators in several countries have warned against their use and some have taken concrete regulatory measures to dissuade users. The non-cryptocurrencies are all
centralized Centralisation or centralization (American English) is the process by which the activities of an organisation, particularly those regarding planning, decision-making, and framing strategies and policies, become concentrated within a particular ...
. As such, they may be shut down or seized by a government at any time. The more anonymous a currency is, the more attractive it is to criminals, regardless of the intentions of its creators. bitcoin has also been criticised for its energy inefficient SHA-256-based
proof of work Proof of work (also written as proof-of-work, an abbreviated PoW) is a form of cryptographic proof in which one party (the ''prover'') proves to others (the ''verifiers'') that a certain amount of a specific computational effort has been expended ...
. According to
Barry Eichengreen Barry Julian Eichengreen (born 1952) is an American economist and economic historian who is the George C. Pardee and Helen N. Pardee Professor of Economics and Political Science at the University of California, Berkeley, where he has taught sin ...
, an economist known for his work on monetary and financial economics, "cryptocurrencies like bitcoin are too volatile to possess the essential attributes of money. Stablecoins have fragile currency pegs that diminish their utility in transactions. And central bank digital currencies are a solution in search of a problem."


List


Non-cryptocurrencies


See also

*
Complementary currency A complementary currency is a currency or medium of exchange that is not necessarily a national currency, but that is thought of as supplementing or complementing national currencies. Complementary currencies are usually not legal tender and the ...
* Automated clearing house *
Cashless catering Cashless catering is a prepay point of sale (POS) technology that allows transactions with the absence of cash at the time of purchase. It is used in canteens, particularly in schools. The use of the technology has expanded to include music festiv ...
*
Cashless society In a cashless society, financial transactions are not conducted with physical banknotes or coins, but instead with digital information (usually an electronic representation of money). Cashless societies have existed from the time when human soc ...
*
Community Exchange System The Community Exchange System (CES) is an internet-based global trading network which allows participants to buy and sell goods and services without using a Fiat money, national currency. It may be described as a type of local exchange trading s ...
*
Cryptocurrency exchange A cryptocurrency exchange, or a digital currency exchange (DCE), is a business that allows customers to trade cryptocurrencies or digital currencies for other assets, such as conventional fiat money or other digital currencies. Exchanges may acce ...
*
Cryptocurrency wallet A cryptocurrency wallet is a device, physical medium, program or an online service which stores the Public-key cryptography, public and/or private keys for cryptocurrency transactions. In addition to this basic function of storing the keys, a cr ...
*
Central bank digital currency A central bank digital currency (CBDC; also called digital fiat currency or digital base money) is a digital currency issued by a central bank, rather than by a commercial bank. It is also a liability of the central bank, unless it is dividend-y ...
*
Digital wallet A digital wallet, also known as an e-wallet or mobile wallet, is an electronic device, online service, or software program that allows one party to make electronic transactions with another party bartering digital currency units for goods and s ...
*
E-commerce payment system An e-commerce payment system (or an electronic payment system) facilitates the acceptance of electronic payment for offline transfer, also known as a subcomponent of electronic data interchange (EDI), e-commerce payment systems have become increa ...
*
Electronic Money Association The Electronic Money Association (EMA) is the trade body representing electronic money issuers in Europe. History The EMA was founded in October 2001 by a group of electronic money issuers and prospective issuers to represent the interests of in ...
*
Electronic funds transfer Electronic funds transfer (EFT) is the transfer of money from one bank account to another, either within a single financial institution or across multiple institutions, via computer-based systems. The funds transfer process generally consists ...
*
Local exchange trading system A local exchange trading system (also local employment and trading system or local energy transfer system; abbreviated LETS) is a locally initiated, democratically organised, not-for-profit community enterprise that provides a community infor ...
*
Payment system A payment system is any system used to settle financial transactions through the transfer of monetary value. This includes the institutions, payment instruments such as payment cards, people, rules, procedures, standards, and technologies that ...
*
Private currency A private currency is a currency issued by a private entity, be it an individual, a commercial business, a nonprofit or decentralized common enterprise. It is often contrasted with fiat currency issued by governments or central banks. In many count ...
*
Privacy Privacy (, ) is the ability of an individual or group to seclude themselves or information about themselves, and thereby express themselves selectively. The domain of privacy partially overlaps with security, which can include the concepts of a ...


References

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