Block details.
Epoch: 40 Number of transactions in block: 1 slot_no: 868716 epoch_slot_no: 4716 block_no: 868619 slot_leader_id: 3 size: 991 time: 2018-04-12 23:56:51 proto_major: 0 proto_minor: 1 hash: \xfe49e92812177c9e8c4e6dea12b9563902e737248853e9142aee4e12d7ab5383Block Operator
vrf_key: op_cert: op_cert_counter: