XPAY KNOWLEDGE
Industry WIKI
Digital assets and currencies
Understand assets, networks and trading mechanics with sources you can check.
Payments & settlement
GNU Taler
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.
NetworksOpenTimestamps
OpenTimestamps (OTS) is an open-source project that aims to provide a standard format for blockchain timestamping.