Block details.
Epoch: 22 Number of transactions in block: 2 slot_no: 478610 epoch_slot_no: 3410 block_no: 478550 slot_leader_id: 6 size: 1389 time: 2018-01-12 16:41:31 proto_major: 0 proto_minor: 1 hash: \xcd2b534b057643dc0dc6cb72c13c71aa506914abee33ae3bdfee567e5399e77dBlock Operator
vrf_key: op_cert: op_cert_counter: