Block details.
Epoch: 197 Number of transactions in block: 4 slot_no: 4259832 epoch_slot_no: 4632 block_no: 4257680 slot_leader_id: 12 size: 4335 time: 2020-06-05 23:28:51 proto_major: 1 proto_minor: 0 hash: \xbf0db1e5f2de633a51d074cb69b1a68ad08ea442159dc9c7189a0fd205adc606Block Operator
vrf_key: op_cert: op_cert_counter: