Today's blockchain and cryptocurrency news Bitcoin is up 1% at $11,469 Ethereum is up 2% at $393 and XRP is up 0.5% at 27 cents Top gainers in the last 24 hours: Numeraire up 45% UMA up 39% and Elrond up 16% The New Zealand stock exchange faced a barrage of criminal cyberattacks this week. US House members have called for a briefing on recent seizure of crypto assets from terrorist groups. NASA is backing a blockchain-based communications system. Fidelity’s head of strategy and planning is at the helm of a new bitcoin-focused fund.