Verify couchbase backup is corruption free

Need help regarding backup validations for couchbase, what is the best way / easiest way to validate couchbase backups.

we have recently moved to couchbase and totally new to couchbase, having some trouble with backup validation.

we are using cbbackupmgr backup for taking backup’s and tar the backup file at the end, could not find any solution on my research.

Any help from this community, Thanks in advance.