Block details.
Epoch: 30 Number of transactions in block: 1 slot_no: 664009 epoch_slot_no: 16009 block_no: 663932 slot_leader_id: 12 size: 989 time: 2018-02-24 14:41:11 proto_major: 0 proto_minor: 1 hash: \xb6818aa4273cd8bba27dcc0699cc485715d7509000e618422489dabb24bdb25fBlock Operator
vrf_key: op_cert: op_cert_counter: