Jack Mallers Unveils 21’s Proof of Reserves

The announcement, made during Bitcoin 2025 in Las Vegas, marks a major milestone in corporate transparency and Bitcoin-native financial infrastructure.

According to Mallers, 21 has now published five publicly verifiable Bitcoin addresses that collectively hold over 42,000 BTC, with funds contributed by major entities including Tether, Bitfinex, and SoftBank. Contributions include:

14,000 BTC from Tether 7,000 BTC from Bitfinex 10,500 BTC from Tether on behalf of SoftBank

Additional holdings from recent capital raises, including a fully subscribed $100 million convertible note

All addresses are viewable on-chain and will be posted to 21’s website and social channels for audit and verification.

Mallers emphasized that such transparency isn’t possible with traditional assets like gold, citing the long-abandoned plans to audit Fort Knox. He framed Bitcoin’s verifiability as its greatest strength and confirmed 21’s mission to bring Bitcoin directly to capital markets, not just welcome Wall Street to crypto.

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