The Casascius Coin Cracked Open in June 2026: A $1.78 Million Bitcoin Time Capsule

The Unique Value of a Casascius Coin

The genius of Mike Caldwell's creation, launched in 2011, lies in its dual nature. Each Casascius coin is both a physical collectible and a bearer asset containing actual bitcoin. A tamper-proof holographic seal covers the private key, making any attempt to access the funds permanently visible on the coin's surface. Because production was halted in 2013 after the U.S. Financial Crimes Enforcement Network (FinCEN) classified Caldwell as a money transmitter, the existing coins are a fixed-supply artifact of crypto history .

When a hologram is peeled, the coin's status changes from a scarce collectible to a redeemed relic. An intact coin often trades at a significant premium above its face value of bitcoin. In April 2025, a 25 BTC "Baby Cas" coin graded by PCGS sold at auction for $1,698,750, a final price that included a $49,700 premium over the bitcoin it contained . The owner who redeemed the coin in June 2026 made a clear decision: the liquidity of the underlying bitcoin was more important than the object's collectible value .

2025-2026: The Great Casascius Awakening

This redemption is not an isolated incident. It is the latest in a structural shift that has seen long-dormant Casascius coins of all sizes spring to life. The trend has accelerated through 2025 and into 2026, turning what were once conversation pieces into serious financial events.

• October 2025: In a single day, nine Casascius coins were opened, releasing 9.5 BTC worth roughly $600,000 at the time. The rapid timing suggested they may have belonged to a single holder .
• December 5, 2025: The most dramatic activation occurred when two ultra-rare 1,000 BTC Casascius coins were redeemed after 13.2 and 14 years of dormancy. The combined 2,000 BTC was worth over $179 million. One of the coins was minted in December 2011 when BTC was priced at just $3.88, representing a theoretical gain of over 2.3 million percent .
• June 3, 2026: The S1-COIN-25 redemption, while smaller in scale at 25 BTC, carries significant symbolic weight as another "time capsule" from Bitcoin's earliest era is awakened .

The year 2025 alone saw roughly 432 Casascius coins peeled open, revealing about 1,100 BTC valued at more than $119 million .

The Billions Still Locked Away

Despite this surge in activity, a staggering amount of bitcoin remains encapsulated in physical form. As of October 2025, data from CasasciusTracker.com indicated that over 38,000 BTC—worth more than $4 billion—remained locked inside approximately 17,746 unredeemed Casascius coins .

The redemption rates vary wildly by denomination. While over 50% of the common 1 BTC and 5 BTC coins have been redeemed, a remarkable 87.72% of the rarer 100 BTC gold bars have been cashed in . Meanwhile, only 16 of the legendary 1,000 BTC bars and 6 of the 1,000 BTC coins were ever created to begin with . Their activations are headline-making events that remind the market of the billions in dormant, early-era bitcoin that still have the potential to gradually re-enter the circulating supply.

The peeling of S1-COIN-25 is a perfect proof of concept: a cold-storage design that functioned flawlessly for nearly a decade and a half, now rendered obsolete by the very fortune it was built to protect.