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:
Aug. 10, 2021

Filed:

Feb. 10, 2020
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Sachiko Yoshihama, Kawasaki, JP;

Tatsushi Inagaki, Yokohama, JP;

Yohei Ueda, Tokyo, JP;

Kohichi Kamijoh, Tokyo, JP;

Hiroaki Nakamura, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); H04L 9/32 (2006.01); H04L 12/26 (2006.01); G06Q 20/38 (2012.01); H04L 9/06 (2006.01); G06F 16/27 (2019.01); G06F 16/18 (2019.01); G06F 16/182 (2019.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3297 (2013.01); G06F 16/1805 (2019.01); G06F 16/1834 (2019.01); G06F 16/27 (2019.01); G06Q 20/382 (2013.01); H04L 9/0643 (2013.01); H04L 29/06 (2013.01); H04L 43/0852 (2013.01); H04L 43/106 (2013.01); H04L 2209/38 (2013.01);
Abstract

An example operation may include one or more of receiving a blockchain request from a client application, determining a network latency between the client application and the endorsing node based on a network path between the client application and the endorsing node, extracting a timestamp from the blockchain request, determining whether the extracted timestamp is invalid based on the network latency between the client application and the endorsing node, and in response to determining that the timestamp is valid, generating an endorsement for the blockchain request and transmitting the endorsement to the client application.


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