The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Jan. 08, 2024
International Business Machines Corporation, Armonk, NY (US);
Elli Androulaki, Zürich, CH;
Kaoutar El Khiyaoui, Zurich, CH;
Alessandro Sorniotti, Zurich, CH;
Angelo De Caro, Zürich, CH;
Marcus Brandenburger, Zurich, CH;
Ilie Circiumaru, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
According to one embodiment, a method, computer system, and computer program product for conducting offline payments is provided. The embodiment may include adding funds from a funding source to an initial token using a commitment scheme. The embodiment may also include producing a proof that a value of a new token is equal to a value of the initial token. The embodiment may further include producing a signature for the new token. The embodiment may also include executing a transaction based on the initial token, the new token, the proof, and the signature. The embodiment may further include in response to executing the transaction, deleting the initial token.