Patent ID: 11900405
Assignee: VALASSIS COMMUNICATIONS, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A method performed by data processing apparatus, the method comprising:
generating, by a coupon-minter, a coupon comprising encrypted discount information, wherein the encrypted discount information is encrypted with a discount key;
generating, by the coupon-minter, for the coupon, a hashlock from a preimage;
introducing, by the coupon-minter, the coupon to a blockchain in association with the hashlock, wherein the blockchain is configured to permit claiming of the generated coupon only upon receiving access to the preimage used to generate the hashlock;
detecting, by a clearing-house-manager, a store-manager's claiming of the coupon;
decrypting, by the clearing-house-manager, the encrypted discount key with a clearing-house private key to re-generate the discount key; and
decrypting, by the clearing-house-manager, the encrypted discount information with the discount key.