Hi,
Please proceed as per the SAP Notes 23345 - "Consistency check of ORACLE database" and 365481 - "Block corruptions" to handle corruption issue. Please alo check the SAP KBA 1559652 - "How to deal with block corruptions on Oracle" for more details.
Also for a possible way to fix block corruption with Zero Downtime, please refer to point 12 of SAP Note 540463- "FAQ: Consistency Checks + Block Corruptions".
For restore&recovery please check SAP Note 605062 - "FAQ: Restore and recovery".
Regards,
Bíborka