Block details.
Epoch: 30 Number of transactions in block: 2 slot_no: 669140 epoch_slot_no: 21140 block_no: 669063 slot_leader_id: 7 size: 1391 time: 2018-02-25 19:11:31 proto_major: 0 proto_minor: 1 hash: \x752352b1fb3581aaf154081e76940a31c197e6f76851f1643c7ac2a19cf10c18Block Operator
vrf_key: op_cert: op_cert_counter: