On Thursday, March 1 US Patent and Trademark office released an application submitted by Walmart. It indicates clear aspirations of the company to put blockchain to use in its package delivery system. The area of application is tracking. The system includes a blockchain platform and a tracking device called a "smart package". It will record the state of the package, it contents, location, etc.
The actual situation with online shopping is new quality requirements for the area. Namely, perishable products need particular temperature control that drives the innovation of the delivery chain. The "smart package" will be all-in-box solution: it will incorporate the necessary blockchain components like private keys recognition and hashing function. With this inclusion, the device will be able to record the chain of package custody.
These online customers many times seek to purchase items that may require a controlled environment and further seek to have greater security in the shipping packaging that the items are shipped in.
Excerpt from Walmart application
The filing also proposes an idea of a cooperation between the "smart package" system and drone technology, for instance. The update to the patent correlates with last year's concept of tracking delivery drones with the blockchain technology. Also worth reminding that last year Walmart collaborated with IBM to from Food Safety Alliance.