Block details.
Epoch: 21 Number of transactions in block: 1 slot_no: 468776 epoch_slot_no: 15176 block_no: 468718 slot_leader_id: 12 size: 990 time: 2018-01-10 10:03:31 proto_major: 0 proto_minor: 1 hash: \xe62567b76d2e964d12e1e803d37aa6547bceeee77a2be256ac6f13518fb7bf3eBlock Operator
vrf_key: op_cert: op_cert_counter: