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I'm afraid I don't get any of this.

"A small wire in the formula label wraps around the container, explains Alexander Busarov, chief executive of blockchain startup WaLiMai. "You cannot open the can of baby food without breaking the label," he says.

"The wire acts as an antenna for a signal from an RFID chip, which a smartphone can read. The chip, like some bank cards, generates a new code each time it is scanned. Authenticating takes about two seconds, says Mr Busarov, then you get the result, the logistics details, a picture of the product and where it was labelled."

They're using magic encryption technology and remote servers to ensure that someone hasn't opened the can and replaced the contents?

I kinda see the diamond example, although I'm not sure what the block chain adds over a simple database. But the problems with the other products invoice a worker dumpling a bag of melamine powder into the mixer with the other ingredients and then lying about it. How does this, or any other, technology stop that?




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