Block details.
Epoch: 31 Number of transactions in block: 3 slot_no: 688609 epoch_slot_no: 19009 block_no: 688532 slot_leader_id: 12 size: 1811 time: 2018-03-02 07:21:11 proto_major: 0 proto_minor: 1 hash: \xb190a607706782bd13002567c6478939f8ba8020f3f5baadd134521dc6823678Block Operator
vrf_key: op_cert: op_cert_counter: