return j.ObjectV1 != nil &&
			j.ObjectV1.valid()
	case ObjectType:
		return j.ObjectV2 != nil &&
			j.ObjectV2.ErasureAlgorithm.valid() &&
			j.ObjectV2.BitrotChecksumAlgo.valid() &&
			isXLMetaErasureInfoValid(j.ObjectV2.ErasureM, j.ObjectV2.ErasureN) &&
			j.ObjectV2.ModTime > 0
	case DeleteType:
		return j.DeleteMarker != nil &&
			j.DeleteMarker.ModTime > 0
	}
	return false
}