#BTC☀
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Casascius coins, created by Mike Caldwell for offline cold storage, were discontinued in 2013 due to FinCEN's regulatory pressure. Recently, two dormant wallets associated with these coins moved 2,000 BTC, valued at around $180 million, after over a decade. The coins, issued in denominations from 1 to 1,000 BTC, featured tamper-proof seals. Approximately 90,000 coins remain in circulation, primarily holding small BTC amounts. Recent transfers' motivations are unclear, possibly linked to physical degradation. In a related incident, a user experienced issues transferring a 100 BTC bar's key to modern wallets.