Altcoins News

Story: $4 Billion in Unclaimed Casascius Coins: The Hidden Bitcoin Treasure That Still Exists

By Steven Anderson

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The Rise of Casascius Coins. Casascius coins were created by Mike Caldwell between 2011 and 2013, when Bitcoin was still a…

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432 Coins Redeemed in 2025 Alone. Data shows that redemption activity continues, though at a slower pace.

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A Slow But Steady Countdown. CasasciusTracker’s data reveals a long-term trend: redemptions peaked between 2012 and 2014, when…

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Series 1 to 3: The Evolution of Casascius Coins. The Casascius lineup spanned several series, each featuring unique materials, denominations, and…

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The Economics of Redemption. Each Casascius coin carries both collectible and monetary value.

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Forgotten Fortunes and Lost Keys. Another mystery surrounding Casascius coins is how many of the remaining pieces are lost or…

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A Glimpse Into Bitcoin’s Tangible Past. The Casascius coins stand as a symbol of Bitcoin’s early experimental spirit.

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More than a decade after their creation, the iconic Casascius physical bitcoins continue to guard one of crypto’s most fascinating fortunes.

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Casascius coins were created by Mike Caldwell between 2011 and 2013, when Bitcoin was still a niche experiment. Each coin represented a certain amount of BTC—ranging from 0.

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Caldwell minted 91,254 BTC across thousands of these coins and bars, turning digital currency into a tangible collectible. However, in 2013, U.S.

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Data shows that redemption activity continues, though at a slower pace. Since the start of 2025, 432 Casascius coins have been peeled open, revealing roughly 1,100 BTC—valued at…

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In October 2025 alone, ten physical units were redeemed between October 1 and October 7. Most were 1 BTC brass coins from the early series, alongside two half-bitcoin silver…

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Despite these ongoing redemptions, there are still 17,746 active Casascius units holding their original BTC untouched.

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CasasciusTracker’s data reveals a long-term trend: redemptions peaked between 2012 and 2014, when hundreds of coins were cracked open every month.

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As of October 19, 2025, more than 10,193 Casascius coins have been redeemed in total. This leaves 38,051 BTC sealed and 53,213 BTC already claimed.

The Currency Analytics

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