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US 11,900,405 B2Granted
Blockchain data
AssigneeValassis Communications, Inc.
InventorsJay Webster, Alexander J. Olson, Tobias Speckbacher, Andreas Binnewies
Life of this patent
Estimating the term…
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AssigneeValassis Communications, Inc.
InventorsJay Webster, Alexander J. Olson, Tobias Speckbacher, Andreas Binnewies
Estimating the term…
A coupon-minter is configured to perform operations including: generating a coupon comprising encrypted discount information, wherein the encrypted discount information is encrypted with a discount key; generating, for the coupon, a hashlock from a preimage; introducing 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. A store-manager configured to perform operations including: claiming, using the preimage, the coupon in the blockchain; encrypting the discount key with a clearing-house public key; updating the coupon with the encrypted discount key. A clearing-house-manager configured to perform operations comprising: detecting the store-manager's claiming of the coupon; decrypting the encrypted discount key with a clearing-house private key to re-generate the discount key; and decrypting the encrypted discount information with the preimage.
A system comprising:
A method performed by data processing apparatus, the method comprising:
A non-transitory computer storage media encoded with computer program instructions that, when executed by one or more processors, cause a computer device to perform operations comprising:
Dependencies are inferred from the claim text.