Seal method and system for packages

摘要: A seal for a package includes circuit having electrical characteristics that change under mechanical deformation and an attaching material coupled to the package. The is attached processed prior shipping establish untampered state seal. This identifying on sealed according type associated with seal, recording one or more from storing later comparison. To detect tampering package, corresponding identified, are determined compared previous recorded when was initially applied If comparison indicates of occurred, it possible were tampered during shipment delivery.