block._repr__ 8b hash
block._repr__ 8b hash

changwu-tw/pyethapp,heikoheiko/pyethapp,danielnovy/test,gsalgado/pyethapp,ethereum/pyethapp,d-das/pyethapp,kustomzone/pyethapp,ethereum/pyethapp,RomanZacharia/pyethapp,RomanZacharia/pyethapp,vaporry/pyethapp,gsalgado/pyethapp,changwu-tw/pyethapp