XPAY KNOWLEDGE

Industry WIKI

Digital assets and currencies

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

Bitcoin

Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 when an unknown person published a white paper under the pseudonym of Satoshi Nakamoto. Use of bitcoin as a currency began in 2009, with the release of its open-source implementation. From 2021 to 2025, El Salvador adopted it as legal tender curren

Fiat currencies

List of countries by exchange rate regime

This is a list of countries and territories by their exchange rate regime.