Walmart files yet another blockchain patent

Walmart has submitted a patent application for a drone communication system based on blockchain technology.

Abstract as follows: “A method of drone-drone communications using blockchain includes: determining operational parameters of a first drone; encrypting the operational parameters of the first drone; storing the encrypted operational parameters of the first drone in a block of a blockchain; determining when a second drone is in proximity of the first drone; retrieving the encrypted operational parameters of the first drone from the block of the blockchain; decrypting the encrypted operational parameters of the first drone; retrieving the operational parameters of the first drone based on the decryption; and configuring the second drone with the operational parameters of the first drone.”

Further details here.

Walmart Coin

Earlier this month, we reported that Walmart was looking into its own US dollar-backed digital currency, along the same lines of Facebook’s much hyped Libra project.

A patent application outlines a method for “generating one digital currency unit by tying the one digital currency unit to a regular currency; storing information of the one digital currency unit into a block of a blockchain; buying or paying the one digital currency unit”.

The stablecoin could benefit those with limited access to banking services, one of Libra’s big selling points. “Using a digital currency, low-income households that find banking expensive, may have an alternative way to handle wealth at an institution that can supply the majority of their day-to-day financial and product needs,” Walmart states.

Users’ purchasing histories could be stored on the blockchain, with related savings applied to subsequent purchases in a similar way to loyalty programmes. Other features include the ability to remove the need for credit cards, and acting as a “pre-approved biometric (e.g., fingerprint or eye pattern) credit…A person is the ‘credit card’ to their own digital value bank”.