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Digital assets and currencies

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

Securities & exchanges

American Stock Exchange Building

The American Stock Exchange Building, formerly known as the New York Curb Exchange Building and also known as 86 Trinity Place or 123 Greenwich Street, is the former headquarters of the American Stock Exchange. Designed in two sections by Starrett & van Vleck, it is located between Greenwich Street and Trinity Place in the Financial District of Lower Manhattan in New York City, with its

Securities & exchanges

Arthur Dantchik

Arthur Dantchik (born 1957) is an American billionaire businessman and philanthropist who is a co-founder and the managing director of Susquehanna International Group, a Bala Cynwyd, Pennsylvania-based financial services firm founded in 1987. As of September 2026, Dantchik's net worth was estimated at $19.5 billion.

Fiat currencies

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 since 1987. Eichengreen is a research associate at the National Bureau of Economic Research and a research fellow at the Centre for Economic Policy R

Fiat currencies

Black 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

Finance

Carmen Reinhart

Carmen M. Reinhart (née Castellanos, born October 7, 1955) is a Cuban-American economist and the Minos A. Zombanakis Professor of the International Financial System at Harvard Kennedy School. Previously, she was the Dennis Weatherstone Senior Fellow at the Peterson Institute for International Economics and Professor of Economics and Director of the Center for International Economics at t

Payments & settlement

Chase Payment Solutions

Chase Payment Solutions, formerly known as Chase Paymentech and Chase Merchant Services, is an American payment service provider and merchant acquiring business that is part of JPMorgan Chase. Paymentech payment platforms supports businesses to process payments. In addition to its payment services the company provides associated business services such as analytics, payment fraud detectio

Banking

Coin 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

Finance

Committee on Banking (Sweden)

The Standing Committee on Banking [and Currency] (Swedish: Bankoutskottet, BaU) was a Swedish parliamentary committee that operated from 1672 to 1970. Originally created to supervise the newly established Riksbank, it evolved into a permanent institution with constitutional status by 1809. Its early duties focused on reviewing the bank's condition and reporting to the estates, but over t

Trading basics

Creditor

A creditor or lender is a party (e.g., person, organization, company, or government) that has a claim on the services of a second party. It is a person or institution to whom money is owed. The first party, in general, has provided some property or service to the second party under the assumption (usually enforced by contract) that the second party will return an equivalent property and

Trading basics

Cross of Gold speech

The Cross of Gold speech was delivered by William Jennings Bryan, a former United States Representative from Nebraska, at the Democratic National Convention in Chicago on July 9, 1896. In his address, Bryan supported "free silver" (i.e. bimetallism), which he believed would bring the nation prosperity. He decried the gold standard, famously concluding the speech, "you shall not crucify m

Finance

Dean Baker

Dean Baker (born July 13, 1958) is an American macroeconomist who co-founded the Center for Economic and Policy Research (CEPR) with Mark Weisbrot. Baker has been credited as one of the first economists to have identified the 2007–08 United States housing bubble.

Finance

Dubai Unlocked

Dubai Leaks is a global collaborative investigative journalism project that has revealed the global elite's ownership of properties in Dubai. The project, named Dubai Unlocked, is based on data that provides a detailed overview of millions of properties in Dubai and information on their ownership or use, mostly between 2020 and 2022.

Fiat currencies

E-Bullion

e-Bullion was an Internet-based digital gold currency founded by Jim and Pamela Fayed of Moorpark, California, as part of their Goldfinger Coin & Bullion group of companies. The company was incorporated in 2000 and launched on July 4, 2001. Similar to competing systems such as e-gold, e-Bullion allowed for the instant transfer of gold and silver between user accounts. e-Bullion was a reg

Fiat currencies

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 five million accounts by 2009, when transfers were suspended due to legal issues. At its peak in 2006, e-gold processed more than US$2 billion w

Fiat currencies

Electricity 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.

Banking

Engwall family

The Engwall family (Swedish pronunciation: [ɛːŋːvˈǎll] ) is a prominent Swedish family descended from Jonas Engwall, an inventor and engineer. The Engwalls are noted as merchants, industrialists, scholars, bankers, politicians, activists, bureaucrats, military officials, philanthropists, economists, and diplomats.

Fiat currencies

Funnyback

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.

Fiat currencies

George Selgin

George Selgin (; born February 15, 1957) is an American economist. Before retiring in July 2025, he was a Senior Fellow at the Cato Institute, the founding Director of its Center for Monetary and Financial Alternatives, and editor-in-chief of that Center's online publication, Alt-M. He is also Professor Emeritus of economics at the Terry College of Business at the University of Georgia,

Fiat currencies

Gustav Cassel

Karl Gustav Cassel (20 October 1866 – 14 January 1945) was a Swedish economist and professor of economics at Stockholm University. Cassel was among the most prominent economists in the world in the interwar period. He made contributions to the study of value, monetary policy, and business cycles.

Banking

J.P. Morgan & Co.

J.P. Morgan & Co. was an American financial institution specialized in investment banking, asset management and private banking founded by financier J. P. Morgan in 1871. Through a series of mergers and acquisitions, the company is now a subsidiary of JPMorgan Chase, the largest banking institution in the world by market capitalization. The company has been historically referred to as th

Finance

Jeffrey Frankel

Jeffrey Alexander "Jeff" Frankel (born November 5, 1952, in San Francisco, California) is an international macroeconomist. He works as the James W. Harpel Professor of Capital Formation and Growth at Harvard Kennedy School.

Payments & settlement

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". Liberty Reserve was conceived as a "PayPal for the unbanked," allowing the 2.5 billion people without bank accounts or credit histories to participate in the modern economy. The site had over one mi

Finance

Museum of American Finance

The Museum of American Finance is an independent public museum dedicated to preserving, exhibiting and teaching about American finance and financial history. It is an affiliate of the Smithsonian Institution. Until 2017 it was located in the Financial District in Manhattan, New York City, but in April 2025 it announced a relocation to Boston, Massachusetts, opening 3 July 2026.

Securities & exchanges

New York Stock Exchange Building

The New York Stock Exchange Building (also NYSE Building) is the headquarters of the New York Stock Exchange (NYSE), located in the Financial District of Lower Manhattan in New York City. It is composed of two connected structures occupying much of the city block bounded by Wall Street, Broad Street, New Street, and Exchange Place. The central section of the block contains the original s

Trading basics

One Equity Partners

One Equity Partners is a private equity firm with over $10 billion in assets under management which primarily deals with the industrial, healthcare and technology sectors in North America and Europe. One Equity Partners was the merchant banking arm of JPMorgan Chase, focused on leveraged buyout and growth capital investments in middle-market companies. Formed by Bank One in 2001, the gro

Finance

Open Financial Exchange

Open Financial Exchange (OFX) is a data stream format for exchanging financial information that evolved from Microsoft's Open Financial Connectivity (OFC) and Intuit's Open Exchange file formats.

Finance

Present value

In economics and finance, present value (PV), also known as present discounted value (PDV), is the value of an expected income stream determined as of the date of valuation. The present value is usually less than the future value because money has interest-earning potential, a characteristic referred to as the time value of money, except during times of negative interest rates, when the

Finance

Quicken Interchange Format

Quicken Interchange Format (QIF) is an open specification for reading and writing financial data to media (i.e. files).

Trading basics

Silver Republican Party

The Silver Republican Party, later known as the Lincoln Republican Party, was a United States political party from 1896 to 1901. It was so named because it split from the Republican Party by supporting free silver (effectively, expansionary monetary policy) and bimetallism. The main Republican Party opposed free silver and supported the gold standard. The strength of the Silver Republica

Trading basics

Student Initiative Rahel

The Student Initiative Rahel (German: Rahel-Bildungsprojekt) was a project of the Institute for World Church and Mission (IWM, German: Institut für Weltkirche und Mission), which is part of the Sankt Georgen Graduate School of Philosophy and Theology in Frankfurt-Sachsenhausen. The nonprofit project started in 2010 and collected money until 2017, financing scholarships for disadvantaged

Fiat currencies

United 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

Stablecoins

USD1: Brand, Token, and Reserve Information

USD1 is a US dollar stablecoin associated with the World Liberty Financial brand. This article introduces its positioning, mechanism, verification checklist, and common misconceptions.

Finance

Wall Street

Wall Street is a street in the Financial District of Lower Manhattan in New York City. It runs eight city blocks between Broadway in the west and South Street and the East River in the east with a length of just under 2,000 feet. The term "Wall Street" has become a metonym for the New York Stock Exchange (NYSE) and its reports of NYSE-listed companies, financial markets of the United Sta

Finance

WePay

WePay is an online payment service provider based in the United States. It provides an integrated and customizable payment solution, through its APIs, to platform businesses such as crowdfunding sites, marketplaces and small business software companies. It also offers partners fraud and risk protection.

Trading basics

What Has Government Done to Our Money?

What Has Government Done to Our Money? is a 1963 book by Murray N. Rothbard that details the history of money, from early barter systems, to the gold standard, to present day systems of paper money.

Finance

World Liberty Financial

World Liberty Financial (WLFI) is a decentralized finance protocol developed by its namesake company. It was founded in 2024 by Zachary Folkman, Chase Herro, Alex Witkoff, Zach Witkoff, and Trump family members. It is a business venture of the Trump family. The Trump family receives 75% of net proceeds when WLFI sells tokens, as well as gets a cut of stablecoin profits. By December 2025,