ソース:[1] Keel Debuts as Sky's Solana-Focused 'Star' With a $2.5B Roadmap to Boost RWAs and DeFi (https://www.coindesk.com/business/2025/09/29/ ...)[2] What Is Sky (SKY) And How Does It Work? - CoinMarketCap (https://vertexaisearch.cloud.google.com/groun ...)[3] Sky, formerly Maker, launches USDS stablecoin on Solana - Cointelegraph (https://vertexaisearch.cloud.google.com/groun ...)