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Digital assets and currencies
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Auroracoin
Auroracoin (Abbreviation: AUR; sign: ᚠ) is a peer-to-peer cryptocurrency launched in February 2014 as an Icelandic alternative to bitcoin and the Icelandic króna. The unknown creator or creators use the pseudonym Baldur Friggjar Óðinsson (or Odinsson). They stated that they planned to distribute half of auroracoins that would ever be created to all 330,000 people listed in Iceland's nat
Payments & settlementBills of credit
Bills of credit are documents similar to banknotes issued by a government that represent a government's indebtedness to the holder. They are typically designed to circulate as currency or currency substitutes. Bills of credit are mentioned in Article One, Section 10, Clause One (also known as the Contract Clause) of the United States Constitution, where their issuance by state governme
Fiat currenciesBimetallism
Bimetallism, also known as the bimetallic standard, is a monetary standard in which the value of the monetary unit is defined as equivalent to certain quantities of two metals, creating a fixed rate of exchange between them. In all known historical cases, the metals are gold and silver.
AssetsBitClout
BitClout was an open source blockchain-based social media platform. On the platform, users could post short-form writings and photos, award money to posts they particularly like by clicking a diamond icon, as well as buy and sell "creator coins" (personalized tokens whose value depends on people's reputations). BitClout ran on a custom proof of work blockchain, and was a prototype of wha
Fiat currenciesBlack Eagle Silver Certificate
The Black Eagle is a type of one-dollar silver certificate produced in 1899 in the United States. The note measured 7.38 in (187 mm) by 3.18 in (81 mm); it was of the large-size variety of bank-notes issued by the United States. The note featured a Bald eagle with its wings spread. The note was also referred to as "Eagle of the Capitol", because the United States Capitol is visible behin
Trading basicsCapital Markets Union
The Capital Markets Union (CMU) is an economic policy initiative launched by the former president of the European Commission, Jean-Claude Juncker in the initial exposition of his policy agenda on 15 July 2014. The main target was to create a single market for capital in the whole territory of the EU by the end of 2019. The reasoning behind the idea was to address the issue that corporate
FinanceCashless 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 society came into existence, based on barter and other methods of exchange, and cashless transactions have also become possible in modern times using
NetworksChromaWay
ChromaWay is a Swedish blockchain technology company founded in 2014, involved in decentralized applications, relational blockchain technology, web3, and smart contracts.
Fiat currenciesClassical Monetary System of the Oriental Republic of Uruguay
The Classical Monetary System of the Oriental Republic of Uruguay includes the coins minted by the Oriental Republic of Uruguay between the years 1840 and 1855 in the national territory. These coins were minted entirely within the city of Montevideo, first at the "Taller y Armería Jouve" owned by a French artisan named Agustín Jouve and later at the Casa de Moneda de Montevideo (Montevid
Fiat currenciesCoin
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 a government. Coins often have images, numerals, or text on them. The faces of coins or medals are sometimes called the obverse and the reverse, ref
BankingCoin roll hunting
Coin roll hunting (often abbreviated as CRH) is the hobby of searching and sorting coinage pulled from circulation for collectible coins. This is achieved through obtaining rolled coin, boxed coin, or bagged coin from banks and credit unions. A variant of this practice involves banknotes and is carried out in essentially the same fashion, normally to search for unusual (fancy) serial num
BankingCoin wrapper
A coin wrapper, also known as a bank roll or simply a roll, is a paper or plastic container designed to hold a specific number of coins. During 19th century, newly minted coins were collected in cloth bags. Initially, coin wrapping was a manual process. Since the onset of the 20th century, coin wrapping machines have been in use. The earliest patent for a coin wrapping machine was in 190
Fiat currenciesCoins as votive offering
In many cultures, coins are used as votive offerings, usually through the act of throwing coins at or in specific objects such as rivers, lakes, ponds, wells, fountains, statues, bells, vehicles, and other objects to pray for blessings, avert disasters, and make wishes.
Payments & settlementColored Coins
Colored Coins is an open-source protocol that allows users to represent and manipulate immutable digital resources on top of Bitcoin transactions. They are a class of methods for representing and maintaining real-world assets on the Bitcoin blockchain, which may be used to establish asset ownership. Colored coins are bitcoins with a mark on them that specifies what they may be used for.
BankingCopper Panic of 1789
The Copper Panic of 1789 was a monetary crisis of the early United States that was caused by debasement and loss of confidence in copper coins that occurred under the presidency of George Washington. Following the American Revolutionary War, several U.S. states began minting their own coins, largely using copper. As copper was relatively easy to counterfeit, counterfeiters in states whic
Trading basicsCryptocurrency ATM
A cryptocurrency ATM (automated teller machine) or Bitcoin ATM is a kiosk that allows a person to purchase Bitcoin and other cryptocurrencies by using cash or debit card. Some Bitcoin ATMs offer bidirectional functionality, enabling both the purchase of Bitcoin and the sale of Bitcoin for cash. In some cases, Bitcoin ATM providers require users to have an existing account to transact on
AssetsCryptocurrency wallet
A cryptocurrency wallet is a device, physical medium, program or an online service which stores the public and/or private keys for cryptocurrency transactions. In addition to this basic function of storing the keys, a cryptocurrency wallet more often offers the functionality of encrypting and/or signing information. Signing can for example result in executing a smart contract, a cryptocu
AssetsCryptojacking
Cryptojacking is the act of exploiting a computer to mine cryptocurrencies, often through websites, against the user's will or while the user is unaware. One notable piece of software used for cryptojacking was Coinhive, which was used in over two-thirds of cryptojacks before its March 2019 shutdown. The cryptocurrencies mined the most often are privacy coins—coins with hidden transactio
Fiat currenciesCurrency board
In public finance, a currency board is a mechanism by which a monetary authority is required to maintain a fixed exchange rate with a foreign currency by fully backing the commitment with foreign holdings, or reserves. This policy objective requires the conventional objectives of a central bank to be subordinated to the exchange rate target.
Fiat currenciesCurrency detector
A currency detector or currency validator is a device that determines whether notes or coins are genuine or counterfeit. These devices are used in a wide range of automated machines, such as retail kiosks, supermarket self checkout machines, arcade gaming machines, payphones, launderette washing machines, car park ticket machines, automatic fare collection machines, public transport tic
Fiat currenciesDe facto currency
A de facto currency is a unit of money that is not legal tender in a country but is treated as such by most of the populace. The United States dollar and the euro are the most common de facto currencies.
Fiat currenciesDebasement
A debasement of coinage is the practice of lowering the intrinsic value of coins, especially when used in connection with commodity money, such as gold or silver coins, while continuing to circulate them at face value. A coin is said to be debased if the quantity of gold, silver, copper or nickel in the coin is reduced.
Fiat currenciesEarly American currency
Early American currency went through several stages of development during the colonial and post-Revolutionary history of the United States. John Hull was authorized by the Massachusetts legislature to make the earliest coinage of the colony (the willow, the oak, and the pine tree shilling) in 1652.
Fiat currenciesElectricity as the Dominant Force in the World
Electricity as the Dominant Force in the World is an 1896 United States five-dollar silver certificate. It is of the US large-size variety measuring 7.375 in (187.3 mm) by 3.125 in (79.4 mm). The note is one of three notes that are part of the "Educational Series". As a result of the nudity portrayed on the obverse and other controversies, the note was replaced in 1899.
FinanceEquivalence in financial services
The principle of equivalence in financial services at the European Union (EU) level is one of the instruments the Commission has at its disposal to carry out its international strategy for financial services. The principle of equivalence is materialised through an equivalence decision issued by the European Commission to a targeted country that it judges fit to have access to the Europea
Fiat currenciesEuro Currency Index
The Euro Currency Index (EUR_I) represents the arithmetic mean of four major currencies against the Euro: the American dollar, British sterling, the Japanese yen and the Swiss franc. All ratios are expressed in units of currency per Euro. The index was launched in 2004 by the exchange portal Stooq.com. Underlying are 100 points on 4 January 1971. Before the introduction of the European s
BankingEuro short-term rate
The Euro Short-Term Rate (€STR) is a reference rate for the euro. This interest rate can be used as the rate referenced in financial contracts that involve the euro. €STR is administered and calculated by the European Central Bank (ECB), based on the money market statistical reporting of the Eurosystem. According to the indications of the working group on euro risk-free rates, €STR repla
Payments & settlementEuropean Network for Payments
The European Network for Payments (abbreviated as ENP) is a joint venture aiming at developing a unified European payment solution and facilitating the interoperability of mobile payment solutions provided by several firms. The European Payments Alliance was created in December 2023 by Italian interbank network Bancomat, Spanish mobile payment firm Bizum and Portuguese firm SIBS (which
Payments & settlementEuropean Payments Initiative
The European Payments Initiative (EPI), previously known as the Pan-European Payments System Initiative (PEPSI), is a unified digital payment service launched in 2020 and backed by sixteen founding European banks and payment service providers. Its aim is to allow European consumers and merchants to make next-generation payments for all types of person-to-person transfers and retail trans
Fiat currenciesFunnyback
A Funnyback is a type of one-dollar silver certificate produced in 1928 and 1934 in the United States. People referred to the note as a "Funnyback" based on the significantly lighter green ink and unusual font printed on the reverse.
NetworksHyperVerse
HyperVerse is a defunct cryptocurrency hedge fund (formerly HyperNation, then HyperFund, then HyperVerse in 2021). The collapse of the company resulted in approximately $1.3 billion in customer losses.
AssetsInitial exchange offering
An Initial exchange offering (IEO) is the cryptocurrency exchange equivalent to a stock launch or Initial public offering (IPO). An IEO is the process of digital asset (e.g. coins or tokens) procurement through an established exchange for the purpose of raising capital for start-up companies. Exchanges act as a middleman between investors and the startup, profiting from fees generated by
Fiat currenciesLeper colony money
Leper colony money was special money (scrip or vouchers) which circulated only in leper colonies (sanatoriums for people with leprosy) due to the fear that money could carry leprosy and infect other people. However, leprosy is not easily transmitted by casual contact or objects; actual transmission only happens through long-term, constant, intimate contact with leprosy sufferers and not
AssetsLitecoin
Litecoin (abbreviation: LTC) is a cryptocurrency and open-source software project created by Charlie Lee and released in 2011. Its software was derived from Bitcoin's codebase. Litecoin uses a scrypt-based proof-of-work system, targets a block interval of 2.5 minutes, and has a maximum supply of 84 million litecoins.
NetworksMarkets in Crypto-Assets
Markets in Crypto-Assets (MiCA or MiCAR) is a regulation in European Union (EU) law that establishes a regulatory framework for crypto-assets in the EU, including cryptocurrencies, security tokens and stablecoins. It was adopted by the EU Parliament on 20 April 2023 and has applied in full since December 2024.
BankingModern gold dinar
The modern gold dinar (sometimes referred as Islamic dinar or Gold dinar) is a proposed bullion gold coin, so far not issued as official currency by any national state. It aims to revive the historical gold dinar, which was a leading coin of early Islam. Advocates have suggested it could consist of minted gold coins (dinars) or of silver coins (dirhams).
Fiat currenciesMoney burning
Money burning or burning money is the purposeful act of destroying money. In the prototypical example, banknotes are destroyed by setting them on fire. Burning money decreases the wealth of the owner without directly enriching any particular party. It also reduces the money supply and (very slightly) slows down the inflation rate.
BankingMoney changer
A money changer is a person or organization whose business is the exchange of coins or currency of one country for that of another. This trade was a predecessor of modern banking.
Fiat currenciesNon-decimal currency
A non-decimal currency is a currency that has sub-units that are a non-decimal fraction of the main unit, i.e. the number of sub-units in a main unit is not a power of 10. Historically, most currencies were non-decimal, though virtually all are now decimal.
Fiat currenciesNumismatics
Numismatics is the study or collection of currency, including coins, tokens, paper money, medals, and related objects.
BankingOfficial cash rate
The official cash rate (OCR) is the term used in Australia and New Zealand for the bank rate and is the rate of interest which the central bank charges on overnight loans between commercial banks. This allows the Reserve Bank of Australia and the Reserve Bank of New Zealand to adjust the interest rates that apply in each country's economy. The OCR cannot be changed by transactions betwee
BankingPrudential Regulation Authority
The Prudential Regulation Authority (PRA) is a United Kingdom financial services regulatory body, formed as one of the successors to the Financial Services Authority (FSA). The authority is responsible for the prudential regulation and supervision of banks, building societies, credit unions, insurers and major investment firms. It sets standards and supervises financial institutions at t
Fiat currenciesRedenomination
In monetary economics, redenomination is the process of changing the face value of banknotes and coins in circulation. It may be done because inflation has made the currency unit so small that only large denominations of the currency are in circulation. In such cases the name of the currency may change or the original name may be used with a temporary qualifier such as "new". Redenominat
Securities & exchangesScripophily
Scripophily is the study and collection of stock and bond certificates. A specialized field of numismatics, scripophily has developed as an area of collecting because of the inherent beauty of certain historical certificates, and because of interest in the historical context of many of the documents. In addition, some stock certificates serve as excellent examples of engraving. Occasiona
Payments & settlementSingle Euro Payments Area
The Single Euro Payments Area (SEPA) is a payment-integration system of the European Union that makes cross-border bank transfers in euros as fast, cheap, and simple as domestic payments. It allows individuals and businesses to make cashless euro transfers to any account within the zone using a single bank account and an International Bank Account Number, under the same basic conditions
Payments & settlementSmscoin
SMSCOIN is a mobile payment systems provider which specializes in SMS payments in particular, and provides premium SMS services in 92 countries supporting hundreds of mobile carrier networks worldwide. The main goal of the project was, and still is, to cover as many countries worldwide as possible.
Fiat currenciesSnake in the tunnel
The snake in the tunnel was a system of European monetary cooperation in the 1970s which aimed at limiting fluctuations between different European currencies. It was the first attempt at European monetary cooperation. It attempted to create a single currency band for the European Economic Community (EEC), essentially pegging all the EEC currencies to one another.
FinanceSouth African Mint
The South African Mint is responsible for minting all coins of the South African rand on behalf of its owner, the South African Reserve Bank. Located in Centurion, Gauteng near South Africa's administrative capital Pretoria, the mint manufactures coins and planchets for both domestic and international markets.
AssetsStablecoin
A stablecoin is a type of cryptocurrency that aims to maintain a stable value relative to a specified asset, a pool or basket of assets. The specified asset might refer to fiat currency, commodity, or other cryptocurrencies. Despite the name, stablecoins are not necessarily stable. Stablecoins rely on stabilization tools such as reserve assets or algorithms that match supply and demand
Fiat currenciesStore of value
A store of value is any commodity or asset that would normally retain purchasing power into the future and is the function of the asset that can be saved, retrieved and exchanged at a later time, and be predictably useful when retrieved.
NetworksTerra (blockchain)
Terra is a blockchain protocol and payment platform used for algorithmic stablecoins. The project was created in 2018 by Terraform Labs, a startup co-founded by Do Kwon and Daniel Shin. It is best known for its Terra algorithmic stablecoin and the associated LUNA reserve asset cryptocurrency.
AssetsThe DAO
The DAO was a digital decentralized autonomous organization and a form of investor-directed venture capital fund. After launching in April 2016 via a token sale, it became one of the largest crowdfunding campaigns in history, but it ceased activity after much of its funds - in the form of US$ exchanged for "Ether-crypto coins" - were taken in a hack in June 2016.
Fiat currenciesThe Great Debasement
The Great Debasement (1544–1551) was a currency debasement policy introduced in 1544 England under the order of Henry VIII which saw the amount of precious metal in gold and silver coins reduced and in some cases replaced entirely with cheaper base metals such as copper. Overspending by Henry VIII to pay for his lavish lifestyle and to fund foreign wars with France and Scotland are cited
Trading basicsToken coin
In numismatics, token coins or trade tokens are coin-like objects used instead of coins. The field of token coins is part of exonumia and token coins are token money. Their denomination is shown or implied by size, color or shape. They are often made of cheaper metals like copper, pewter, aluminium, brass and tin, or non-metals like bakelite, leather and porcelain.
Fiat currenciesUnited States dollar
The United States dollar (symbol: $; currency code: USD) is the official currency of the United States (U.S.) and several other countries. The U.S. Coinage Act of 1792 established the dollar as the base unit, with each dollar divided into 100 cents (symbol: ¢). U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green col
Fiat currenciesWorld currency
A world currency, supranational currency, or global currency is a currency that is widely used in international finance or in international trade to price goods or other transactions. It is generally a currency which is stable in terms of inflation and has a high demand on the foreign exchange market. Greek and Roman coins were the first world currency, followed by Dutch guilders in the