After being sealed for approximately 11 years, two Casascius coins with a face value of 1000 BTC each were swept out on the same day

Odaily Planet Daily News: According to monitoring by Galaxy's research director, Mike Caldwell minted 22 Casascius collectibles with a face value of 1000 BTC each between 2011 and 2013, including 16 gold-plated bars and 6 pure gold coins; 16 of these were redeemed before 2014. The remaining 6 pieces were sealed for approximately 11 years, until December 5, 2025, when someone swept out 2 of these gold coins with a face value of 1000 BTC each (2000 BTC total) on the same day. Currently, 4 pieces remain unredeemed.