Woofun AI data shows that two Casascius coins, each carrying a face value of 1000 BTC, were transferred on December 5, 2025, following an approximately 11-year period of inactivity. Mike Caldwell originally minted 22 such collectibles between 2011 and 2013, comprising 16 gold-plated bars and 6 pure gold coins.

Sixteen of these items were redeemed prior to 2014, leaving six units untouched until the recent movement. The simultaneous sweep of the two gold coins totaling 2000 BTC leaves four unredeemed pieces remaining in circulation.