Block details.
Epoch: 88 Number of transactions in block: 2 slot_no: 1905031 epoch_slot_no: 4231 block_no: 1903559 slot_leader_id: 4 size: 1472 time: 2018-12-08 21:15:11 proto_major: 0 proto_minor: 2 hash: \xcf94ebaaf92c3533a5578127d17be0564b6ee2145abeebbadd0ca05d383aa6e2Block Operator
vrf_key: op_cert: op_cert_counter: