change with completed and crosscheck

RMAN> change backup of database
 completed after "sysdate-2"
 crosscheck;

using channel ORA_DISK_1
using channel ORA_DISK_2
using channel ORA_DISK_3
using channel ORA_DISK_4
using channel ORA_DISK_5
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/SHARED/backup1/9hp8grvi_1_1 RECID=221 STAMP=847802361
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/SHARED/backup1/9gp8grvi_1_1 RECID=222 STAMP=847802364
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/SHARED/backup1/9fp8grvh_1_1 RECID=223 STAMP=847802359
Crosschecked 3 objects