Block details.
Epoch: 74 Number of transactions in block: 1 slot_no: 1617720 epoch_slot_no: 19320 block_no: 1617323 slot_leader_id: 3 size: 1022 time: 2018-10-03 09:04:51 proto_major: 0 proto_minor: 1 hash: \xe6b88103c23e1ecbbaf2485ec4d63a2f19fc40fe8f96d20dd514196d895b196dBlock Operator
vrf_key: op_cert: op_cert_counter: