Industry WIKI

GNU Taler is a free software-based microtransaction and electronic payment system. Unlike most other decentralized payment systems, GNU Taler does not use a blockchain. A blind signature is used to protect the privacy of users as it prevents the exchange from knowing which coin it signed for which customer.

In the teaching of the Catholic Church, an indulgence (Latin: indulgentia, from indulgeo, 'permit') is "a way to reduce the amount of punishment one has to undergo for (forgiven) sins". The Catechism of the Catholic Church describes an indulgence as "a remission before God of the temporal punishment due to sins whose guilt has already been forgiven, which the faithful Christian who is du

The just price is a theory of ethics in economics that attempts to set standards of fairness in transactions. With intellectual roots in ancient Greek philosophy, it was advanced by St. Thomas Aquinas based on an argument against usury, which in his time referred to the making of any rate of interest on loans. It gave rise to the contractual principle of laesio enormis.

OpenTimestamps (OTS) is an open-source project that aims to provide a standard format for blockchain timestamping.

The threshold pledge or fund and release system is a way of making a fundraising pledge as a group of individuals, often involving charitable goals or financing the provision of a public good. An amount of money is set as the goal or threshold to reach for the specified purpose and interested individuals will pitch in, but the money at first either remains with the pledgers or is held in