The disclaimer remains valid, but at Zcash launch date it is highly unlikely you'll not be mining at full speed. Not only do we have a functioning miner, but due to our ongoing development we have already tripled the hashrate offer (see http://blog.genesis-mining.com/zcash-gets-another-hashrate-upgrade), followed in less then a week by doubling that again (see http://blog.genesis-mining.com/zcash-gets-another-hashrate-upgrade).

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Your Genesis Mining Team