if md5sum != object.ETag {
					corrupted = true
				}
			} else {
				var totalMD5SumBytes []byte
				for _, sum := range partsMD5Sum {
					totalMD5SumBytes = append(totalMD5SumBytes, sum...)
				}
				s3MD5 := fmt.Sprintf("%x-%d", getMD5Sum(totalMD5SumBytes), parts)
				if s3MD5 != object.ETag {
					corrupted = true
				}
			}

			if corrupted {