XPAY KNOWLEDGE
Industry WIKI
Digital assets and currencies
Understand assets, networks and trading mechanics with sources you can check.
Fiat currencies
Legal tender
Legal tender is a form of money that the law recognises as valid for the discharge of a monetary debt in a jurisdiction. What constitutes legal tender varies between jurisdictions.
Fiat currenciesList of British banknotes and coins
List of British banknotes and coins, with commonly used terms.