Server Administration :: Block Corruption - Segment Not Found

I have a database where view v$database_block_corruption shows a corrupted block

SQL> select * from v$database_block_corruption;

FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO
---------- ---------- ---------- ------------------ ---------
4 756652 1 5.5157E+12 CORRUPT

I am not able to get the relevant segment from the above information

SQL> select segment_name, segment_type, owner
2 from dba_extents
3 where file_id = 4
4 and 756652 between block_id
5 and block_id + blocks -1;

no rows selected

DBVERIFY Summary
DBVERIFY - Verification complete
Total Pages Examined : 3932160
Total Pages Processed (Data) : 3119107
Total Pages Failing (Data) : 0
Total Pages Processed (Index): 755048

[code]....

I have uploaded the complete logfile.

Below is a part of logfile

DBVERIFY - Verification starting : FILE = /prd/dvp/ora/oradata/LHF/disk06/gds_t01_01.dbf
Block Checking: DBA = 21728172, Block Type = KTB-managed data block
**** kdxcoavs = -84 < 0, avail = 3129
---- end index block validation
Page 756652 failed with check code 6401
##not here that 756652 is the same block# mentioned in v$database_block_corruption

here i tried finding the OBJECT ID as below

SELECT dbms_utility.data_block_address_block(21728172) "BLOCK", dbms_utility.data_block_address_file(21728172) "FILE" FROM dual;
BLOCK FILE
---------- ----------
756652 5

Now for the same BLOCK it is giving different File, again the segment_name or segment_id could not be found from the above information.