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:
Mar. 08, 2022
Filed:
May. 20, 2016
Fujitsu Limited, Kawasaki, JP;
Avradip Mandal, San Jose, CA (US);
Arnab Roy, Santa Clara, CA (US);
Hart Montgomery, Redwood City, CA (US);
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A method of participation verification includes generating sets of cryptocurrency coins (coin sets). The coin sets have cryptocurrency coins and correlate to events for which participation is verified. The method includes generating user keys including unique public keys for each user and user secret keys. The method includes assigning a public key to a user, communicating the assigned public key to a user device and enabling download of a verification application. The method includes receiving a first coin request that includes identification of a first coin set, the assigned public key, and a data set. The method includes verifying user participation in an event based on the data set. The method includes executing a cryptocurrency transaction with the user device. The cryptocurrency transaction including public validation of a transfer of a cryptocurrency coin from the identified coin set to the user device via an append-only ledger.