move money between payment apps

Diem (formerly known as Libra) was a permissioned blockchain-based stablecoin payment system proposed by the American social media company Facebook. The plan also included a private currency implemented as a cryptocurrency. The launch was originally planned to be in 2020, but only rudimentary experimental code was released.
The project, currency, and transactions would have been managed and cryptographically entrusted to the Diem Association, a membership organization of companies from payment, technology, telecommunication, online marketplace and venture capital, and nonprofits. Before December 2020, the project was called "Libra", although this was changed to Diem following legal challenges regarding its name and logo.
The project generated backlash from government regulators in the European Union (EU), the United States, other countries, and among the general public over monetary sovereignty, financial stability, privacy, and antitrust concerns which ultimately helped kill the project. The Diem Association (originally the Libra Association) shut down in January 2026 and sold the project to Silvergate Bank. Silvergate wrote off their Diem investment in January 2027.

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