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Nano coin, which was known as raiblock(https://raiblocks.net/), is currently growing fastly. It appeared at november of last year which was year of 2018. currently the currency between US dollar to nano coin is almost 1:1 stably.
you can have the whole view of Nano coin here https://coinmarketcap.com/currencies/nano/
subscribe and follow, and I'll try to get more information about Nano coin! thank you!