METHOD FOR ISSUING, REDEEMING, REFUNDING, SETTLING AND REVOKING ELECTRONIC VOUCHER BY MANAGING BALANCE DATABASE BY BLOCKS IN BLOCKCHAIN, AND SERVER EMPLOYING SAME

Title:

METHOD FOR ISSUING, REDEEMING, REFUNDING, SETTLING AND REVOKING ELECTRONIC VOUCHER BY MANAGING BALANCE DATABASE BY BLOCKS IN BLOCKCHAIN, AND SERVER EMPLOYING SAME

Document Type and Number:

WIPO Patent Application WO/2018/070784

Kind Code:

A3

Abstract:

After electronic voucher data, a public key and a signature value which are for issuing an electronic voucher are acquired from a specific issuer and validated and if the validation is successful, the invention generates an electronic voucher issuance transaction and registers same in a private blockchain database, provides PrixTxid therefor to the specific issuer, updates, by means of delta indicating a change level, value information included in the electronic voucher data and registers same in a balance database, and, if a predetermined condition is met, registers a representative hash value, generated by computing a specific hash value associated with the electronic voucher issuance transaction and a neighboring hash value matching the specific hash value, in a public blockchain database and acquires Txid therefor.

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Inventors:

SONG JOO HAN (KR)
HONG JAY WU (KR)
UHR JOON SUN (KR)

Application Number:

PCT/KR2017/011210

Publication Date:

July 19, 2018

Filing Date:

October 11, 2017

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Assignee:

COINPLUG INC (KR)

International Classes:

G06Q20/38; G06Q30/02; G06Q30/04

Foreign References:

KR101575030B1	2015-12-07
KR101637854B1	2016-07-08

Other References:

SHIN, LAURA: "Why The Bitcoin Blockchain Could Make Gift Cards, A Consumer Favorite, Even More Beloved", FORBES, 17 June 2015 (2015-06-17), pages 1 - 4, XP055506986, Retrieved from the Internet
OLAVSRUD, THOR: "Why Blockchain Can Be Fatal to Your Company", CIO KOREA, 7 September 2016 (2016-09-07), pages 1 - 3, Retrieved from the Internet
WUILLE, PIETER: "Tree Signatures", BLOCKSTREAM, 24 August 2015 (2015-08-24), pages 1 - 6, Retrieved from the Internet
KIM, KANGMO: "Detection of Forgery and Alteration of Private Blockchain Using Public Blcokchain", GITHUB, 5 August 2016 (2016-08-05), pages 1 - 2, Retrieved from the Internet

Attorney, Agent or Firm:

SU INTELLECTUAL PROPERTY (KR)

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