The coupon industry is using distributed ledger technology to combat coupon fraud and to gain market transparency
Source: https://cointelegraph.com/news/coupon-industry-and-dlt-e-commerce-grows-with-world-cooped-up-at-home
Coupon Industry and DLT: E-Commerce Grows With World Cooped Up at Home
April 25, 2020
CoinTelegraph