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Block, Inc. | Wiki | Mapping Bitcoin
Block, Inc.
Jack Dorsey fintech company formerly known as Square, holding 8,800+ BTC, building the Bitkey wallet, Proto mining chip, and Bitcoin via Cash App.
Related
Jack DorseyFounder
Co-founder of Twitter and Block (formerly Square) who became one of the most prominent corporate Bitcoin advocates, funding open-source development.
Lightning NetworkRelated
Layer 2 protocol built on Bitcoin enabling near-instant, low-cost transactions through bidirectional payment channels, proposed in 2015 by Poon and Dryja.
Referenced by
Fold Holdingsecosystem-peer
Bitcoin rewards and financial services company holding approximately 1,526 BTC, offering consumers and businesses Bitcoin-integrated financial products.
Teslaecosystem-peer
Electric vehicle and clean energy company that purchased $1.5 billion in Bitcoin in early 2021, holding approximately 11,509 BTC as a treasury reserve asset.
Jack DorseyFounder
Co-founder of Twitter and Block (formerly Square) who became one of the most prominent corporate Bitcoin advocates, funding open-source development.
United StatesRelated
Holder of the world's largest sovereign Bitcoin reserve, established via executive order in 2025, with holdings primarily from law enforcement seizures.