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Raising free-range chickens isn’t easy, a Chinese farmer named Jiang tells Xiaowei Wang in a fascinating new book, Blockchain Chicken Farm. Why? Even if you get the chickens safely grown in their sunny, free-range yards, you have a new problem: You have to convince your finicky customers, in far-off cities, that you’re telling the truth about how the chickens were raised.
So Jiang turned to high-tech chicken surveillance. He outfitted his chickens with wearable legbands that record their movements — “a chicken Fitbit of sorts” — and worked with a tech start-up to record the data on a blockchain. When customers
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