Block details.
Epoch: 122 Number of transactions in block: 1 slot_no: 2639737 epoch_slot_no: 4537 block_no: 2638223 slot_leader_id: 4 size: 958 time: 2019-05-27 22:57:11 proto_major: 0 proto_minor: 2 hash: \xaf1ba2eb9ca95d0f4f69b323c3212a52c4fbda892e3bd10dab2d481ce6c872ddBlock Operator
vrf_key: op_cert: op_cert_counter: