Bitcoin's supply and institutional buyer base are tightening, while an AI-hacking challenge failed to breach its security. A wallet funded with 100 BTC remained untouched after months of public challenge; fewer than 900,000 BTC remain to be mined, and Fidelity bought $24.5 million for its ETF. Senator Hagerty says the US will hold its 200,000 BTC and wants to buy more. x.com x.com x.com x.comÂ
