Block details.
Epoch: 30 Number of transactions in block: 1 slot_no: 664841 epoch_slot_no: 16841 block_no: 664764 slot_leader_id: 7 size: 1073 time: 2018-02-24 19:18:31 proto_major: 0 proto_minor: 1 hash: \x2562dab05e02d0b9b5820353dbdfc0bded65a775643f685c965c0e1d0b8ea0d3Block Operator
vrf_key: op_cert: op_cert_counter: