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July 28, 2026Jack Dorsey, co-founder of Twitter (now X) and Square (now Block), is a prominent figure in the Bitcoin space. His consistent advocacy and direct involvement, including building infrastructure, have significantly impacted the cryptocurrency’s adoption. This article details his journey with Bitcoin, focusing on his wallet usage and related initiatives.
Early Adoption & Public Support
Dorsey’s interest in Bitcoin began to publicly surface around 2017. He recognized Bitcoin’s potential as a decentralized and permissionless financial system. Unlike many tech leaders who cautiously approached crypto, Dorsey embraced it wholeheartedly. He believed Bitcoin could empower individuals and challenge traditional financial institutions.
Block (Formerly Square) & Bitcoin
Under Dorsey’s leadership, Square (now Block) made significant strides in Bitcoin integration. Cash App, a Block product, became a major on-ramp for Bitcoin, allowing millions of users to buy, sell, and hold BTC. This accessibility was crucial for mainstream adoption. Block also invested heavily in Bitcoin development, creating a dedicated team focused on improving the Bitcoin network.
Spiral & Bitcoin Development
Dorsey funded Spiral (formerly Square Crypto), an independent team dedicated to open-source Bitcoin development. Spiral focused on projects like Bitcoin Core improvements and building user-friendly Bitcoin wallets. Their work aimed to enhance Bitcoin’s scalability, privacy, and usability.
Dorsey’s Personal Bitcoin Wallet
While Dorsey hasn’t publicly revealed the specifics of all his Bitcoin holdings, he’s been transparent about using a hardware wallet for secure storage. He’s emphasized the importance of self-custody – controlling your own private keys – as a core principle of Bitcoin ownership. He’s likely using a Ledger or Trezor device, popular choices for secure Bitcoin storage.
He’s also demonstrated using Bitcoin for everyday transactions, like purchasing coffee, further showcasing his belief in its practicality. He often tweets about Bitcoin, driving conversation and awareness.
TBTC & Lightning Network
Dorsey championed TBTC (Tokenized Bitcoin), an experimental project aiming to bring Bitcoin to the Ethereum network. This involved creating a token representing Bitcoin on Ethereum, enabling its use in DeFi applications. He’s also a strong supporter of the Lightning Network, a layer-2 scaling solution for Bitcoin, enabling faster and cheaper transactions.
Recent Developments & Future Outlook
Dorsey continues to advocate for Bitcoin, even after stepping down as CEO of Twitter. His focus remains on building tools and infrastructure that empower individuals with financial freedom. His commitment suggests he views Bitcoin as a long-term solution to systemic financial issues. He believes Bitcoin will eventually become the dominant currency.
Key Takeaways: Dorsey’s involvement isn’t just financial; it’s ideological. He sees Bitcoin as a fundamental shift in power, returning control to individuals. His wallet choices reflect a commitment to security and self-custody.




