XPayIndustry WIKIBack to home
XPAY KNOWLEDGE

Industry WIKI

Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Payments & settlement

2C2P

2C2P is a financial services company headquartered in Singapore. The company primarily provides payment gateway services to businesses.

Banking

American Bankers Association

The American Bankers Association (ABA) is an American trade association for the U.S. banking industry, founded in 1875. They lobby for banks of all sizes and bank charters, including community banks, regional and money center banks, Federal savings associations, mutual savings banks, and trust companies. The average member bank has approximately $250 million in assets. ABA is the largest

Banking

Banker (ancient)

The banker of ancient times was employed within financial activities, during the ancient Mesopotamian, ancient Greek and ancient Roman periods.

Fiat currencies

Bimetallism

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.

Trading basics

Bitcoin and politics

Bitcoin and politics influence each other in several ways. Governments of several countries use Bitcoin in various capacities, and some politicians use Bitcoin in their electoral programs.

Fiat currencies

Bureau de change

A bureau de change (plural bureaux de change, both BURE-oh də SHONZH; British English) or currency exchange (American English) is a business where people can buy or sell a foreign currency.

Finance

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 society came into existence, based on barter and other methods of exchange, and cashless transactions have also become possible in modern times using

Banking

Central bank digital currencies by country

A wide range of countries and currency unions have explored, piloted, or deployed central bank digital currencies (CBDCs), which serve as direct liabilities of a central bank and legal tender alongside physical cash and bank deposits. National initiatives generally focus either on wholesale CBDCs for interbank settlements or retail CBDCs for use by the general public.

Banking

Central bank digital currency

A central bank digital currency (CBDC) is a digital version of an official currency, created by a central bank rather than by private companies. Unlike cryptocurrencies such as Bitcoin, CBDCs are issued by a state and may work alongside physical cash. As of 2024, the Bahamas, Jamaica, and Nigeria have launched CBDCs, and 134 countries are researching their own versions while other jurisd

Banking

Cheque clearing

Cheque clearing (or check clearing in American English) or bank clearance is the process of moving cash (or its equivalent) from one bank, from which a cheque is drawn, to another bank, in which it was deposited. Clearance is usually accompanied by the movement of the cheque to the paying bank, either in the traditional physical paper form or digitally under a cheque truncation system. T

Finance

Clearing (finance)

In banking and finance, clearing refers to all activities from the time a commitment is made for a transaction until it is settled. This process turns the promise of payment (for example, in the form of a cheque or electronic payment request) into the actual movement of money from one account to another. Clearing houses were formed to facilitate such transactions among banks.

Finance

Clearing house (finance)

A clearing house, often written as clearinghouse, is a financial institution formed to facilitate the exchange (i.e., clearance) of payments, securities, or derivatives transactions. The clearing house stands between two clearing firms (also known as member firms or participants).

Fiat currencies

Coincidence of wants

The coincidence of wants (often known as double coincidence of wants) is an economic phenomenon where two parties each hold an item that the other wants, so they exchange these items directly. Within economics, this has often been presented as the foundation of a bartering economy.

Trading basics

Commodity money

Commodity money is money whose value comes from a commodity of which it is made. Commodity money consists of objects having value or use in themselves (intrinsic value) as well as their value in buying goods. This is in contrast to representative money, which has no intrinsic value but represents something of value such as gold or silver, for which it can be exchanged, and fiat money, wh

Fiat currencies

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 their use is based on agreement between the parties exchanging the currency. According to Jérôme Blanc of Laboratoire d'Économie de la Firme et de

Fiat currencies

Credit theory of money

Credit theories of money, also called debt theories of money, are monetary economic theories concerning the relationship between credit and money. Proponents of these theories, such as Alfred Mitchell-Innes, sometimes emphasize that money and credit/debt are the same thing, seen from different points of view. Proponents assert that the essential nature of money is credit (debt), at leas

Assets

Cryptocurrencies in Europe

The general notion of cryptocurrencies in Europe denotes the processes of legislative regulation, distribution, circulation, and storage of cryptocurrencies in Europe. In April 2023, the EU Parliament passed the Markets in Crypto Act (MiCA) unified legal framework for crypto-assets within the European Union.

Fiat currencies

Currency

A currency is a standardized form of money used as a medium of exchange. Under this definition, the US dollar, the euro, the yen, sterling, and the renminbi are examples of (government-issued) fiat currencies. Currencies may act as stores of value and be traded between nations in foreign exchange markets, which determine the relative values of the different currencies.

Fiat currencies

Currency in circulation

In monetary economics, the currency in circulation in a country is the value of

Fiat currencies

Demurrage currency

Demurrage currency, also known as depreciating money or stamp scrip in its paper money form, is a type of money that is designed to gradually lose purchasing power at a constant rate. Demurrage money is often confused with inflation, as they both cause money to lose value, but they have significantly different economic effects. Unlike normal money, demurrage is designed to be only a temp

Fiat currencies

Digital currency

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 currencies include cryptocurrency, virtual currency and central bank digital currency. Digital currency may be recorded on a distributed database on

Banking

Digital euro

The digital euro is a project of the Eurosystem, launched in July 2021, to explore the possible introduction of a central bank digital currency (CBDC). The aim is to develop a fast and secure electronic payment instrument that would complement the euro for individuals and businesses in its existing form as cash and in bank accounts, and would be issued by the Eurosystem. The ECB has stat

Fiat currencies

Digital gold currency

Digital gold currency (DGC) is a form of digital currency based on mass units of gold. The typical unit of account for such currency is linked to grams or troy ounces of gold, although other units such as the gold dinar are sometimes used. DGCs are backed by gold through unallocated or allocated gold storage. A digital gold currency could be a kind of representative money if it is exchan

Banking

Digital renminbi

Digital renminbi (Chinese: 数字人民币; also abbreviated as digital RMB and e-CNY), or Digital Currency Electronic Payment (DCEP, Chinese: 数字货币电子支付; pinyin: Shùzì huòbì diànzǐ zhīfù), is a central bank digital currency issued by China's central bank, the People's Bank of China. It is the first digital currency to be issued by a major economy, undergoing public testing as of April 2021. The dig

Banking

Digital ruble

The digital ruble (Russian: цифровой рубль, romanized: tsifrovoy rubl') is a central bank digital currency (CBDC) issued by the Central Bank of Russia (Bank of Russia). It represents the third official form of the Russian national currency alongside cash and commercial bank deposits, with all forms legally equivalent and exchangeable at par.

Banking

Digital rupee

The digital rupee (e₹), eINR, or e-rupee is a tokenised digital version of the Indian rupee, issued by the Reserve Bank of India (RBI) as a central bank digital currency (CBDC). The digital rupee was proposed in January 2017 and launched on 1 December 2022.

Banking

E-Cedi

The E-Cedi is a proposed central bank digital currency (CBDC) for Ghana. In June 2021, he announced the development of the E-Cedi.

Fiat currencies

Fiat money

Fiat money or fiat currency is a type of government-issued currency, generally created by a central bank, authorized by government regulation to be legal tender but not backed by a precious metal, such as gold or silver, nor by any other tangible asset or commodity. Since the end of the Bretton Woods system in 1976 by the Jamaica Accords, all the major government currencies in the world

Finance

Financial technology

Financial technology (abbreviated as fintech) refers to the application of new technologies to products and services in the financial industry. This broad term encompasses a wide array of technological tools in financial services, including mobile banking, online lending platforms, digital payment systems, robo-advisors, and blockchain-based applications such as cryptocurrencies. Financi

Trading basics

Gresham's law

In economics, Gresham's law, also Gresham-Copernicus Law (after Nicolaus Copernicus) is a monetary principle stating that "bad money drives out good". For example, if there are two coins in circulation containing metal of different value, which are accepted by law as having similar face value, the more valuable coin based on the inherent value of its component metals will gradually disap

Banking

Helicopter money

Helicopter money is a proposed monetary policy for inflation targeting, sometimes suggested as an alternative to quantitative easing (QE) when the economy is in a liquidity trap (when interest rates near zero and the economy remains in recession). Although the original idea of helicopter money describes central banks making payments directly to individuals, economists have used the term

Fiat currencies

Indonesian rupiah

The rupiah (pronounced [ruˈpi.ah]; symbol: Rp; currency code: IDR) is the official currency and sole legal tender in Indonesia. It is issued and managed by Bank Indonesia, while its banknotes and coins are produced by the state-owned Perum Peruri. The name derives from the Sanskrit rupya, meaning "wrought silver". One rupiah is legally divided into 100 sen, although regular currency is i

Assets

L3cos

L3COS (Level 3 Consensus Operating System) is an algorithm for digitising processes based on Blockchain, which has a three-level structure and is distributed as Platform as a Service for state bodies and businesses. The algorithm is based on the blockchain, in which any decision made at any of the levels will become part of the common chain. The technology involves a three-level framewor

Trading basics

Loyalty program

A loyalty program or rewards program is a marketing strategy designed to encourage customers to continue to shop at or use the services of one or more businesses associated with the program.

Trading basics

Manilla (money)

Manillas are a form of commodity money, usually made of brass, bronze, or copper, which were used in West Africa. They were produced in large numbers in a wide range of designs, sizes, and weights. Originating before the colonial period, perhaps as the result of trade with the Portuguese Empire, manillas continued to serve as money and decorative objects until the late 1940s and are stil

Banking

MBridge

mBridge (a.k.a. Multiple CBDC Bridge) is a multiple central bank digital currency platform developed to support real-time, peer-to-peer, cross-border payments and foreign exchange transactions using CBDCs. Based on a blockchain called the mBridge Ledger, the platform is designed to ensure compliance with jurisdiction-specific policy and legal requirements, regulations, and governance nee

Fiat currencies

Medium of exchange

In economics, a medium of exchange is any item that is widely accepted in exchange for goods and services. In modern economies, the most commonly used medium of exchange is currency. Most forms of money function as media of exchange, including commodity money, representative money, cryptocurrency, and most commonly fiat money. Representative and fiat money exist in digital form as well a

Fiat currencies

Metallism

Metallism is the economic principle that the value of money derives from the purchasing power of the commodity upon which it is based. The currency in a metallist monetary system may be made from the commodity itself (commodity money) or it may use tokens (such as national banknotes) redeemable in that commodity. Georg Friedrich Knapp (1842–1926) coined the term "metallism" to describe

Banking

Mojmír Hampl

Mojmír Hampl (born 13 March 1975) is a Czech economist and writer, who has been the Chairman of the Czech Fiscal Council since 2022. Previously, from 2019 to 2021, he worked for KPMG Czech Republic as a director responsible for financial sector services. Between 2006 and 2018 he served as a board member of the Czech National Bank. From 2008 he held the post of CNB Vice-Governor. He has b

Fiat currencies

Monetary reform

Monetary reform refers to proposals to change a country's monetary system, including how money is created, regulated, and distributed. Such reforms seek to address perceived problems with current monetary schemes, like financial instability, wealth inequality, or inflation. Monetary reform movements grow during economic crises, proposing alternatives to prevailing systems.

Fiat currencies

Monetary sovereignty

Monetary sovereignty is the power of the state to exercise exclusive legal control over its currency and monetary policy. This includes the authority to designate a country's legal tender, control the money supply, set interest rates, and regulate financial institutions. Monetary sovereignty is crucial for national sovereignty, economic independence, and policy autonomy.

Fiat currencies

Nigerian naira

The naira (sign: ₦; code: NGN; Yoruba: náírà, Hausa: نَيْرَ, romanized: naira, Igbo: naịra, Tyap: nera) is the currency of Nigeria. One naira is divided into 100 kobo.

Finance

Pakistan Crypto Council

Pakistan Crypto Council (PCC) is a Pakistani regulatory body established to develop policy, infrastructure and regulation for blockchain technology and digital assets within Pakistan. It operates under the Ministry of Finance with input from the State Bank of Pakistan (SBP), Securities and Exchange Commission of Pakistan (SECP), and other federal agencies.

Banking

Paper money

Paper money, often referred to as a note or a bill (North American English), is a type of negotiable promissory note that is payable to the bearer on demand, making it a form of currency. The main types of paper money are government notes, which are directly issued by political authorities, and banknotes issued by banks, namely banks of issue including central banks. In some cases, paper

Assets

Petro (token)

The petro (₽), or petromoneda, launched in February 2018, was a crypto token issued by the government of Venezuela.

Securities & exchanges

Promissory note

A promissory note, sometimes referred to as a note payable, is a financial instrument in which one party (the maker or issuer) promises in writing to pay a determinate sum of money to another (the payee), subject to any terms and conditions specified within the document.

Fiat currencies

Quantity theory of money

The quantity theory of money (QTM) is a hypothesis within monetary economics which states that the general price level of goods and services is directly proportional to the amount of money in circulation (i.e., the money supply), and that the causality runs from money to prices. This implies that the theory potentially explains inflation. It originated in the 16th century and has been pr

Banking

Reserve Bank of New Zealand

The Reserve Bank of New Zealand (RBNZ) (Māori: Te Pūtea Matua) is the central bank of New Zealand. It sets monetary policy, regulates banks, insurers and other deposit takers, and issues the country's banknotes and coins. It is based in Wellington, and Anna Breman has been governor since December 2025.

Payments & settlement

Scrip

A scrip is any substitute for legal tender.

Trading basics

Shell money

Shell money is a medium of exchange similar to coin money and other forms of commodity money, and was once commonly used in many parts of the world. Shell money usually consisted of whole or partial sea shells, often worked into beads or otherwise shaped. The use of shells in trade began as direct commodity exchange, the shells having use-value as body ornamentation. The distinction betw

Banking

Silver standard

The silver standard is a monetary system in which the standard economic unit of account is a fixed weight of silver. Silver was far more widespread than gold as the monetary standard worldwide, from the Sumerians c. 3000 BC until 1873. Following the discovery in the 16th century of large deposits of silver at the Cerro Rico in Potosí, Bolivia, an international silver standard came into e

Assets

Smart contract

A smart contract is a computer program or a transaction protocol that is intended to automatically execute, control or document events and actions according to the terms of a contract or an agreement. The objectives of smart contracts are the reduction of need for trusted intermediators, arbitration costs, and fraud losses, as well as the reduction of malicious and accidental exceptions.

Assets

Stablecoin

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

Trading basics

Standard of deferred payment

In economics, standard of deferred payment is a function of money. It is the function of being a widely accepted way to value a debt, thereby allowing goods and services to be acquired now and paid for in the future.

Fiat currencies

Store 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.

Fiat currencies

Time-based currency

In economics, a time-based currency is an alternative currency or exchange system where the unit of account is the person-hour or some other time unit. Some time-based currencies value everyone's contributions equally: one hour equals one service credit. In these systems, one person volunteers to work for an hour for another person; thus, they are credited with one hour, which they can r

Finance

Tuttle Twins

Tuttle Twins is an American educational animated series distributed by Angel Studios and produced by Tuttle Twins Show LLC, based on the book series of the same name by Connor Boyack. First released on June 30, 2021, the series follows twin siblings Ethan and Emily Tuttle, who travel through space and time with their grandmother Gabby to meet historical figures and learn lessons about to

Trading basics

Unit of account

In economics, unit of account, sometimes called currency unit or monetary unit, is a standard unit of measurement of the market value of goods, services, and other transactions. Also known as a measure of relative worth and a standard of deferred payment, a unit of account is a necessary prerequisite for the formulation of commercial agreements that involve debt.

Stablecoins

USDC (cryptocurrency)

USDC (USD Coin) is a cryptocurrency stablecoin issued by Circle Internet Group. It is pegged to the United States dollar, and is distinct from a central bank digital currency (CBDC).

Fiat currencies

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 virtual economy. In 2014, the European Banking Authority defined virtual currency as "a digital representation of value that is neither issued by a cent