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:
Jul. 06, 2021

Filed:

Jun. 19, 2017
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventor:

Yuki Kondo, Cupertino, CA (US);

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06Q 20/38 (2012.01); H04L 29/06 (2006.01); H04L 9/32 (2006.01); G06F 30/20 (2020.01);
U.S. Cl.
CPC ...
G06Q 20/382 (2013.01); H04L 9/3239 (2013.01); H04L 63/065 (2013.01); H04L 63/123 (2013.01); G06F 30/20 (2020.01); H04L 2209/38 (2013.01); H04L 2463/121 (2013.01);
Abstract

In some examples, a first node is able to communicate with one or more second nodes for participating in a consensus system. The first node may receive, from a computing device, a request to execute a first smart contract associated with a first blockchain. The first node may invoke execution of the first smart contract to cause the first smart contract to execute a transaction by reading at least a portion of transaction data from the first blockchain as a transaction result. Further, the first node may check whether a simulation indicator has been set, which indicates that an expiration time of the first smart contract has been reached. Based on determining that the first smart contract has the simulation indicator set, the first node refrains from writing the transaction result to the blockchain as a valid transaction result and sends the transaction result to the computing device.


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