A series of transactions involving dormant Bitcoin has been broadcasted, marking significant movements of long-inactive coins. The first transaction involved 4 BTC, untouched for 12 years, broadcasted at block 925486. Subsequent transactions included 2 BTC each, with coins dormant for 9.9 and 10.9 years, broadcasted at blocks 925497, 925503, and 925557. The final transaction involved 1 BTC, untouched for 13.2 years, broadcasted at block 925586. All transactions originated from an 'Unknown Entity'.