Block details.
Epoch: 30 Number of transactions in block: 2 slot_no: 650714 epoch_slot_no: 2714 block_no: 650638 slot_leader_id: 7 size: 1394 time: 2018-02-21 12:49:31 proto_major: 0 proto_minor: 1 hash: \xd0379a7dd67f7c65ccf10d5a65e409a2923f3a9cc44ad82babdf17c19e3290acBlock Operator
vrf_key: op_cert: op_cert_counter: