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Each wallet has its own address. Reward wallets are seperate because smartcash team wants you to retain your coins. That way, smartcash has some value and is less prone to abuse on exchanges where people use massive pump and dump to earn quick bucks and leave everyone high and dry.

But they dont want its users to be stuck forever. So they have created seperate wallets. If you are likely to trade off your smartcash, you can keep them in liquid wallet. If you want to earn rewards on them (as part of long term strategy), then you should store them in rewards wallet..

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