Block details.
Epoch: 91 Number of transactions in block: 2 slot_no: 1972291 epoch_slot_no: 6691 block_no: 1970809 slot_leader_id: 4 size: 1356 time: 2018-12-24 10:55:11 proto_major: 0 proto_minor: 2 hash: \xd725507225b0f5ebfdb11f8af98ea9858307b6850e038762ac217c30db4bcf92Block Operator
vrf_key: op_cert: op_cert_counter: