Block details.
Epoch: 14 Number of transactions in block: 4 slot_no: 303680 epoch_slot_no: 1280 block_no: 303638 slot_leader_id: 6 size: 3006 time: 2017-12-03 04:51:31 proto_major: 0 proto_minor: 0 hash: \xcf55ae8fe6d2a951e9faec78ff19db39264f3b8db4edd04e340f1884393dddc6Block Operator
vrf_key: op_cert: op_cert_counter: