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Industry WIKI

Digital assets and currencies

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

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

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.

Securities & exchanges

Jeff Yass

Jeffrey Steven Yass (born July 1958) is an American billionaire businessman. According to Forbes, Yass had a net worth of US$77.8 billion as of September 2026, up from $27.6 billion in April 2024. The richest man in Pennsylvania, he is also the 25th richest in the world. He is a registered Libertarian who gives money to conservative super PACs including Club for Growth Action and the Pro

Finance

Kantox

Kantox Ltd is a multinational fintech company that offers Currency Management Automation software for corporate clients. Their software automates the pre-trade, trade, and post-trade stages of the corporate foreign exchange (FX) workflow.

Payments & settlement

Microtransaction

A microtransaction (MTX) video game business model is one where users can purchase in-game virtual goods with micropayments. Microtransactions are often used in free-to-play games to provide a revenue source for the developers. While microtransactions are a staple of the mobile app market, they are also seen on PC software such as Valve's Steam digital distribution platform, as well as c

Banking

Otto.

Otto. (spelled with the period) is Finland's interbank network, connecting the ATMs of nearly every bank in the country. It is owned and operated by Automatia. They offer service in Finnish and Swedish, but also in English to holders of international ATM cards. The word "otto" means "withdrawal" in Finnish, and is also a relatively common German-derived given name. The withdrawal points