
Two historic Casascius wallets each holding 1,000 BTC were activated after over a decade, transferring $180 million in assets under uncertain circumstances.
A Bitcoin wallet linked to Casascius physical coins moved 2,000 BTC valued at approximately $180 million on Dec. 7, after being inactive since 2011–2012 when BTC traded below $15. Casascius coins, created by Mike Caldwell from 2011 until late 2013, served as offline cold storage with private keys hidden under tamper-evident holograms. Regulatory action by U.S. FinCEN ended production, leaving around 90,000 coins in circulation, including six coins and 16 bars with 1,000 BTC each. The reason for the recent transaction remains unclear.