Blockchain leader Dragonchain received a patent for a blockchain loyalty system that tracks and monetizes time with blockchain, in accordance with the documents published by the United States Patent and Trademark Office (USPTO) on April 23. The product described in the filing corresponds to the U.S. patent application filed in November 2018 titled “Security Systems and Methods based on Cryptographic Utility Token Inventory Tenure.” Dragonchain proposes a new value system, Dragon Days of Slumber Score, also known as DDSS, which captures a...