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Industry WIKI

Digital assets and currencies

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

Payments & settlement

BTCPay Server

BTCPay Server is a free and open-source, self-hosted Bitcoin payment processor created in 2017 by Nicolas Dorier. The software allows merchants to accept bitcoin payments directly to their own wallets rather than through a centralized processor, and supports both on-chain Bitcoin and Lightning Network payments.

Payments & settlement

Electronic benefit transfer

Electronic benefit transfer (EBT) is an electronic system used in the United States that allows state welfare departments to issue benefits via a magnetically encoded payment card. It reached nationwide operations in 2004.

Payments & settlement

Electronic Recording Machine, Accounting

ERMA (Electronic Recording Machine, Accounting) was a computer technology that automated bank bookkeeping and check processing. Developed at the nonprofit research institution SRI International under contract from Bank of America, the project began in 1950 and was publicly revealed in September 1955.

Payments & settlement

Four Corners Model for Payment Security

The Four Corners model, often referred to as the Four Party Scheme is the most used card scheme in card payment systems worldwide. This model was introduced in the 1990s. It is a user-friendly card payment system based on an interbank clearing system and economic model established on multilateral interchange fees (MIF) paid between banks or other payment institutions.

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

Payments & settlement

Merchant account

A merchant account is a type of bank account that allows a seller, known as the merchant, to accept payments by debit or credit cards. A merchant account is established under an agreement between an acceptor and a merchant acquiring bank for the settlement of payment card transactions. In some cases a payment processor, payment service provider, independent sales organization (ISO), or

Banking

Narrow banking

Narrow banking is a banking system that restricts commercial banks to hold only safe and liquid assets, like government bonds, against customer deposits, while prohibiting traditional lending activities. Under this model, banks function as custodians and payment processors, separate from the lending function performed by other financial intermediaries. The concept emerged as a response t

Payments & settlement

PayPal

PayPal Holdings, Inc. is an American multinational financial technology company operating an online payments system in the majority of countries that support online money transfers; it serves as an electronic alternative to traditional paper methods such as checks and money orders. The company operates as a payment processor for online vendors, auction sites and many other commercial and