Digging through cannabis based cryptocurrencies even more than my prior post I have come to doubt most of them besides PotCoin only for their smart marketing and simple approach of creating a rewards based system of use for regular consumers/buyers of cannabis products. Admitting I haven't given Marijuanacoin a good enough look yet either, most of these cannabis based coins like CANN and CCN don't really seem to show me any type of innovative implications that other cryptos don't provide, and don't seem to stand up to the marketing of coins like POT, MAR and THC. DOPE coin seemed to sit with the losers at first for me, but the CEO and a few others from DOPE coin seem be involved in a new cryptocurrency/blockchain application called SmokeExchange (SMX) that might have a solid plan. Check out their site for yourself, but the fact that they are one of the few canna-cryptos with an actual white paper that you can find already puts them ahead of most the others I've stumbled upon.