On-chain data shows that at 9:42 AM (UTC+8), 4,500 BTC (worth $537M) were transferred from address bc1q...tjty to Galaxy Digital. The address still holds 15.5K BTC ($1.85B) and is linked to the dormant “80K BTC whale.” Coinbase's Conor Grogan previously suggested these coins likely belonged to a solo miner from 2011.