Memory chip that gets erased when exposed to blue light for security

For sensitive shipments, a new memory chip that gets erased when exposed to blue light, like daylight, could be used to alert recipients to potential tampering. The chip uses a thin semiconductor attached to a material that, when stretched, will shrink back to its original position slowly, or immediately when exposed to certain wavelengths of light. This could be useful as a barcode printed inside sensitive shipments. If the shipment is opened and exposed to daylight before reaching its destination, the me