Abstract: System of authenticating and clearing coupons including a central platform accessible by retailer computer system(s) and manufacturer computer system(s), where the central platform contains coupon authentication table(s) updated by the manufacturer computer system(s) and accessible by the retailer computer system(s), and the central platform contains coupon transaction ledger(s) updated by the retailer computer system(s) and accessible by the manufacturer computer system(s); and a blockchain transactions ledger including blockchain nodes memorializing modifications made to the coupon authentication table(s) and the coupon transaction ledger(s) in the central platform.