Block details.
Epoch: 72 Number of transactions in block: 1 slot_no: 1557226 epoch_slot_no: 2026 block_no: 1556897 slot_leader_id: 3 size: 1033 time: 2018-09-19 09:00:11 proto_major: 0 proto_minor: 1 hash: \x723120e6fdefee4ca71d6a02aa411b68a551389c2b547197408426691afdba0dBlock Operator
vrf_key: op_cert: op_cert_counter: