Block details.
Epoch: 172 Number of transactions in block: 1 slot_no: 3736697 epoch_slot_no: 21497 block_no: 3734640 slot_leader_id: 12 size: 1392 time: 2020-02-05 21:10:31 proto_major: 0 proto_minor: 2 hash: \xb6507f9d18a6215869f81143adb25350c2262c04b24e224d1e2a76a2d8a02ecdBlock Operator
vrf_key: op_cert: op_cert_counter: