Block details.
Epoch: 18 Number of transactions in block: 3 slot_no: 391014 epoch_slot_no: 2214 block_no: 390962 slot_leader_id: 7 size: 1750 time: 2017-12-23 10:02:51 proto_major: 0 proto_minor: 1 hash: \x40281bbd46b718c5a288d1a6b23243ecb0272ec4f23fdd4e83acfdc1e3518c38Block Operator
vrf_key: op_cert: op_cert_counter: