Blockchain News 21Shares files with SEC for spot Polkadot ETF 1 year ago Amid the influx of new crypto ETF filings in the United States, asset management firm 21Shares has filed to launch a spot Polkadot ETF. Tags: Blockchain Continue Reading Previous Stablecoin market cap surpasses $200B as USDC dominance risesNext Swiss bank UBS tests blockchain for digital gold investments on ZKsync More Stories Blockchain News Mastercard expands support to USDC, PYUSD, RLUSD stablecoin settlement 1 day ago Blockchain News Cardano’s TapTools to wind down after 5 execs exit 2 days ago Blockchain News Bankr temporarily disables transactions after 14 wallets hacked 2 weeks ago