Block details.
Epoch: 157 Number of transactions in block: 1 slot_no: 3408272 epoch_slot_no: 17072 block_no: 3406731 slot_leader_id: 4 size: 2013 time: 2019-11-21 20:35:31 proto_major: 0 proto_minor: 2 hash: \xb8a9578e7d399b678fe0dfae9774eb79624aaf3816c75271ea9686a0f60d146cBlock Operator
vrf_key: op_cert: op_cert_counter: