Don't compute the proof of work hash just to compute a block hash - assume we already have populated mixhash
Don't compute the proof of work hash just to compute a block hash - assume we already have populated mixhash

RyanLucchese/energi,RyanLucchese/energi,RyanLucchese/energi,RyanLucchese/energi,RyanLucchese/energi,RyanLucchese/energi