Today's blockchain and cryptocurrency news Bitcoin is down slightly at $5,722 XRP is down 1% at 29 cents and Ethereum is down .5% at $159 Top gainers in the last 24 hours: Mainframe up 12% Craig Wright faces court order to produce documents by May 15th in Kleiman misappropriation suit. An anonymous countdown website has appeared claiming that the identity of Satoshi Nakamoto will be revealed on the site in under 10 days. A hacker has been targeting GitHub repositories, demanding Bitcoin ransom. The CTO of Coinbase Balaji Srinivasan will be stepping down.