Today's cryptocurrency and blockchain news Bitcoin is up 7% at $3,872 XRP is up 10% at 37 cents Ethereum is up 18% at $136 Visa is set to purchase Earthport; a ripple partner and payment network for cross-border transactions. The national bank of Kuwait announces NBK remit, cross-border payments solution that uses RippleNet. Ledger has responded to a recent vulnerabilities announced at the Berlin Chaos Computer Club Conference.