Block details.
Epoch: 64 Number of transactions in block: 2 slot_no: 1388210 epoch_slot_no: 5810 block_no: 1387994 slot_leader_id: 4 size: 1352 time: 2018-08-11 06:01:31 proto_major: 0 proto_minor: 1 hash: \xb7611a47240b81c5dfd17ce3c5b292d3a6f889a41eec57859682b1590b088644Block Operator
vrf_key: op_cert: op_cert_counter: