Block details.
Epoch: 88 Number of transactions in block: 1 slot_no: 1903352 epoch_slot_no: 2552 block_no: 1901880 slot_leader_id: 13 size: 1033 time: 2018-12-08 11:55:31 proto_major: 0 proto_minor: 2 hash: \xf38b1755df198e27bfb227f2c8ad2054b8c3f53753e3e4d3cec2f3ba026af59dBlock Operator
vrf_key: op_cert: op_cert_counter: