Block details.
Epoch: 29 Number of transactions in block: 1 slot_no: 643023 epoch_slot_no: 16623 block_no: 642947 slot_leader_id: 12 size: 985 time: 2018-02-19 18:05:51 proto_major: 0 proto_minor: 1 hash: \x76063a31821508fb613b4e3162dd7ec85eb090599f17b603e7f46b0835248838Block Operator
vrf_key: op_cert: op_cert_counter: