Facebook Announces More Details of Libra’s Technical Design
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Facebook published the Libra cryptocurrency proposal in June 2019 and continued detailing its design through the summer. The project aimed to create a global digital currency backed by a reserve of conventional financial assets.
Unlike Bitcoin, Libra was not initially designed around permissionless proof-of-work mining. A consortium of approved organizations would operate validator nodes using a Byzantine fault-tolerant consensus system. Facebook also introduced Move, a programming language designed for digital assets with stricter resource semantics than ordinary general-purpose languages.
The technical design was overshadowed by regulatory resistance over monetary policy, privacy, and Facebook’s influence. The project was later renamed Diem and ultimately abandoned, but Move survived and became part of later blockchain projects.