Welcome to this edition of the CryptJoh Gazette, the crypto news of the week ! Opinion Leader - Michael Saylor hints at possible Bitcoin sales by MicroStrategy and the firm sells 32 BTC. The executive chairman told Natalie Brunell it is “not unlikely” the firm will offload some BTC before year-end, and MicroStrategy actually sold 32 BTC this week, marking the first notable shift from its long-standing never-sell policy amid market volatility. - Ethereum Foundation announces key personnel changes. New leadership appointments and team restructuring have the community debating the network’s development priorities and long-term governance direction. On Chain Updates - Bitcoin records sharp price drop. BTC declined nearly 8 percent over the last week, testing lower support levels as on-chain exchange inflows spiked and leveraged positions were unwound. - Hyperliquid hits new all-time high in daily volume. On-chain data confirmed the Hyperliquid L1 perpetuals platform processed a record $12 billion in 24-hour volume, pushing its native token to fresh ATHs and underscoring explosive growth in decentralized derivatives. - Solana on-chain transaction count reaches weekly high. Daily transactions climbed above 85 million as meme-coin activity and DeFi volume surged, confirming sustained network usage even during the broader market dip. Security Alerts and Hacks - Zcash (ZEC) price drop explained by protocol concerns. ZEC fell more than 13 percent after independent researchers disclosed a potential side-channel timing attack on shielded transactions, triggering holder de-risking and reduced privacy-feature usage across the network. Institutional Edge - US Bitcoin, Ethereum and Hyperliquid ETFs see mixed flows. Bitcoin ETFs posted net outflows of $1.8 billion amid price weakness, Ethereum ETFs attracted $420 million inflows, and Hyperliquid on-chain inflows exceeded $650 million. - Mastercard expands stablecoin settlement capabilities. The company announced 24/7 card settlement using regulated stablecoins (USDC, PYUSD, RLUSD and others) across eight chains including Ethereum, Solana and Polygon. Tech Frontier - Vitalik Buterin shares thoughts on layer-2 fragmentation. The Ethereum co-founder warned that excessive L2 proliferation is hurting user experience and called for tighter coordination between rollups and the base layer. - Sui advances agentic payments infrastructure. The network rolled out new tools designed for autonomous AI-driven payments, trying to position itself as a key player in the emerging machine-to-machine commerce layer.