Block details.
Epoch: 18 Number of transactions in block: 4 slot_no: 389741 epoch_slot_no: 941 block_no: 389689 slot_leader_id: 12 size: 2103 time: 2017-12-23 02:58:31 proto_major: 0 proto_minor: 1 hash: \x0cd0fa1ce0dbd8c4c24938a094c9d5a2339bd6582b1db2c3479975c1051e3206Block Operator
vrf_key: op_cert: op_cert_counter: