Block details.
Epoch: 77 Number of transactions in block: 2 slot_no: 1665739 epoch_slot_no: 2539 block_no: 1665323 slot_leader_id: 4 size: 1901 time: 2018-10-14 11:51:11 proto_major: 0 proto_minor: 1 hash: \xa8f2995e2c0c1c765561521d45db20a4ded09c676c9fd81ab06e5d1df9671202Block Operator
vrf_key: op_cert: op_cert_counter: