Two Casascius 100 BTC Bars Opened Amid April Dip
Two Casascius 100 BTC bars opened during Bitcoin price dip, unlocking approximately $19.2 million worth of BTC. The rare physical Bitcoin bars are part of a now-defunct series created by entrepreneur Mike Caldwell in the early 2010s.
Only Seven 100-BTC Bars from Series 1 Remain Unopened
Caldwell released a range of Casascius coins and bars, including 100, 500, and 1000 BTC units. In Series 1, 57 bars of 100 BTC were minted, and only 7 remain sealed. The two recently opened bars were from Series 2 (S2), of which 81 were made. According to CasasciusTracker, 30 S2 bars remain unopened.
Funds Moved Shortly After Bars Were Redeemed
Both bars were opened in April 2025, and the BTC was quickly transferred to other addresses. This marks the first time 100 BTC Casascius bars have been redeemed since October 2024. Before that, the last known event occurred in October 2021.
Even Rarer: 1000 BTC Casascius Bars
The legendary 1000 BTC Casascius bars are even rarer. Only 16 were ever made, and just two are still sealed or untouched. The last known movement from a 1000 BTC bar happened in August 2014.
Collectibles with Serious Value and History
While Casascius bars no longer hold their original private keys, they remain among the most iconic physical crypto artifacts. Their occasional reactivation fascinates both collectors and on-chain analysts alike.
