Bitcoin core developer Jeff Garzik has signed a deal to have his full-node satellites built, ready to be launched into orbit. IBM is rumored to be working on its own version of Bitcoin designed to introduce instant euro and dollar payments. Large sybil attack discovered as huge node network found to be working to undermine blockchain anonymity, and much more that happened on March 13. Garzik signs deal to deploy his BitSats to space Bitcoin core developer Jeff Garzik has brought his plans to deploy blockchain full nodes into space on mini satellites a step closer to reality. Garzik's Dunvegan …