Today's blockchain and cryptocurrency news: Bitcoin is down slightly at $3,806 XRP is down 2% at 31 cents and Ethereum down 2% at $130 At the recent agriculture summit in Paris, Macron called for exploring blockchain to improve traceability of agriculture products. A recent audit has shown the QuadrigaCX cold wallets have been empty since April of 2018. Thai SEC steps back on coins allowed for ICOs, and base pairs. Twitter CEO Jack Dorsey shows off his Casa Node.