Blockchain News 21Shares files to launch SEI ETF, joining race with Canary Capital August 29, 2025 SEI is the native token of the Sei network, a layer-1 blockchain specializing in trading infrastructure for decentralized exchanges and marketplaces. Post Navigation Previous Blockchain tokenization prevents 394M tons of CO₂ in $32B ESG effortNext DeFi platform dYdX plans Telegram trading in roadmap update as earnings slide More Stories Blockchain News Polygon gains US payments licenses after closing Coinme deal Oktober 15, 2026 Blockchain News Aptos rolls out Encrypted Mempool to curb frontrunning, sandwich attacks Oktober 13, 2026 Blockchain News XRP Ledger defends emergency patch for unlimited XRP bug Oktober 12, 2026