OpenSea launches on-chain tool to enforce NFT royalties. Bank of Korea tested NFT trading using a CBDC. Lionel Messi joins trading card game Sorare as brand ambassador. ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌