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XRB's core team announced a rebrand to NANO. This comes as kind of a surprise and coincidence after its run from below $0.10 in November to over $18 now. XRB has been criticized in the past for the handling of some of their announcements and issues, but the technology is legit and the core team is committed. Read the Medium article for more information.
https://medium.com/@nanocurrency/nano-rebrand-announcement-9101528a7b76