Two dormant 13-year-old Casascius physical bitcoins experienced a sudden movement, with 2,000 BTC being transferred.

BlockBeats News, December 7th, according to CoinDesk, a wallet address associated with Casascius physical bitcoins, which has been dormant for over 13 years, recently suddenly transferred 2,000 BTC (about $180 million). These BTC have not moved since 2011–2012, when the price of Bitcoin was less than $15.

Casascius Physical Coin Background: Launched by American entrepreneur Mike Caldwell in 2011, embedded with a private key and tamper-evident hologram, it can be used as offline cold storage. Denominations range from 1 BTC to 1,000 BTC. In 2013, it was forced to cease production due to FinCEN considering it an "unregistered money transmitter."

There are still about 90,000 units in circulation, but most hold small amounts; only 6 coins and 16 gold bars contain 1,000 BTC. It is currently unclear whether this transfer is for sale, internal reorganization, or simply for security reasons (such as the risk of physical material degradation).

Earlier this year, a user holding 100 BTC Casascius gold bars had to transfer funds worth about $9 million to a hardware wallet due to the difficulty of importing the private keys into a modern wallet.