Block details.
Epoch: 1 Number of transactions in block: 1 slot_no: 43055 epoch_slot_no: 21455 block_no: 43031 slot_leader_id: 12 size: 1027 time: 2017-10-03 20:56:31 proto_major: 0 proto_minor: 0 hash: \xe067422a8f6aaf927b0d62f0582b6371094cd15000bf07eff7b977022be75e2fBlock Operator
vrf_key: op_cert: op_cert_counter: