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.

Date of Patent:
Dec. 26, 2017

Filed:

Oct. 17, 2016
Applicant:

Guardtime Ip Holdings Limited, Tortola, VG;

Inventors:

Ahto Truu, Tartu, EE;

Andres Kroonmaa, Saue Vald, EE;

Michael Gault, Amsterdam, NL;

Jeffrey Pearce, Hilo, HI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3247 (2013.01); H04L 9/3239 (2013.01); H04L 9/3242 (2013.01); H04L 63/0823 (2013.01); H04L 63/102 (2013.01); H04L 2209/38 (2013.01); H04L 2209/56 (2013.01);
Abstract

At least one node in a distributed hash tree verification infrastructure is augmented with an identifier of an entity in a registration path. A data signature, which includes parameters for recomputation of a verifying value, and which is associated with a digital input record, will therefore also include data that identifies at least one entity in the hash tree path used for its initial registration in the infrastructure. An uppermost value of the hash tree verification infrastructure is entered as, or as part of, a transaction in a blockchain.


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