JP6763031B2 - ブロックチェーンベースの暗号通貨を用いた税金還付方法、プログラム、及びコンピュータ読み取り可能な記録媒体 - Google Patents
ブロックチェーンベースの暗号通貨を用いた税金還付方法、プログラム、及びコンピュータ読み取り可能な記録媒体 Download PDFInfo
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- G06Q20/00—Payment architectures, schemes or protocols
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- G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
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- G06Q2220/00—Business processing using cryptography
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
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Description
200 外国人
300 税関
400 国税庁
Claims (11)
- ブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法であって、
外国人が事後免税店で商品を購入すると、前記ブロックチェーンベースの暗号化処理を行うノード装置は、前記商品に対する税金の還付を受けるべき対象を条件に応じて異ならせて指定した第1暗号通貨取引用データを生成するステップと、
前記第1暗号通貨取引用データが前記事後免税店の秘密鍵で署名されると、前記ノード装置は、税関を受信者とする第2暗号通貨取引用データを生成するステップと、
前記生成された第2暗号通貨取引用データが前記税関の秘密鍵で署名されると、前記ノード装置は、前記外国人に前記暗号通貨を支給するための第3暗号通貨取引用データを生成するステップと、
前記生成された第2暗号通貨取引用データが前記税関の秘密鍵で署名されないと、前記ノード装置は、国税庁または前記事後免税店に前記暗号通貨を支給するための第4暗号通貨取引用データを生成するステップと、を含む、ブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記第2暗号通貨取引用データが生成されると、前記ノード装置は、前記生成された第2暗号通貨取引用データに含まれる前記税関の公開鍵を用いて、前記税関のノード装置に前記第2暗号通貨取引用データを伝送するステップをさらに含むことを特徴とする、請求項1に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。
- 前記第3暗号通貨取引用データが生成されると、前記ノード装置は、生成された第3暗号通貨取引用データをP2P(peer to peer)ネットワークのノード装置に送信(broadcast)するステップ、または
前記第4暗号通貨取引用データが生成されると、前記ノード装置は、生成された第4暗号通貨取引用データをP2P(peer to peer)ネットワークのノード装置に送信(broadcast)するステップをさらに含むことを特徴とする、請求項2に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記事後免税店、前記税関、前記国税庁、及び前記外国人のそれぞれは、前記暗号通貨の処理を行うノード装置を含み、
前記ノード装置は、取引の所有権を立証することができる秘密鍵を予め格納していることを特徴とする、請求項1に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記第1暗号通貨取引用データは、
事後免税店情報、商品金額情報、還付税額情報、及びパスポート情報を含む取引内訳情報をメタデータとして含むことを特徴とする、請求項1に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記第1暗号通貨取引用データは、
複数主体の署名が前記条件で設定されたデータであることを特徴とする、請求項1に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記第1暗号通貨取引用データは、
取引用データの受信側のアドレス及び前記条件が記録されたロックスクリプトと、前記取引用データを伝送する側が秘密鍵で署名した署名が記録されたアンロックスクリプトと、を含むことを特徴とする、請求項6に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記ロックスクリプトには、
事後免税店の公開鍵、税関の公開鍵、外国人の公開鍵、国税庁の公開鍵、及び少なくとも2つ以上の秘密鍵で署名されるべきであるという条件値を記録することを特徴とする、請求項7に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - 前記第3暗号通貨取引用データのアンロックスクリプトには、
前記事後免税店の秘密鍵による署名及び前記税関の秘密鍵による署名を記録することを特徴とする、請求項8に記載のブロックチェーンベースの暗号通貨(Crypto‐Currency)を用いた税金還付方法。 - コンピュータに、
請求項1から9の何れか一項に記載の税金還付方法のステップを実行させるプログラム。 - 請求項10に記載のプログラムが記録されたコンピュータ読み取り可能な記録媒体。
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KR1020170081365A KR101886283B1 (ko) | 2017-06-27 | 2017-06-27 | 블록체인 기반의 암호화 화폐를 이용한 세금 환급 방법, 프로그램, 및 컴퓨터 판독 가능한 기록 매체 |
KR10-2017-0081365 | 2017-06-27 | ||
PCT/KR2018/007004 WO2019004650A1 (ko) | 2017-06-27 | 2018-06-21 | 블록체인 기반의 암호화 화폐를 이용한 세금 환급 방법, 프로그램, 및 컴퓨터 판독 가능한 기록 매체 |
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EP (1) | EP3447715A4 (ja) |
JP (1) | JP6763031B2 (ja) |
KR (1) | KR101886283B1 (ja) |
CN (1) | CN109661680A (ja) |
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KR102178583B1 (ko) | 2018-11-13 | 2020-11-13 | 주식회사 싸이투코드 | 디지털 컨텐츠 원본 확인키를 이용한 블록체인 방식의 계약 단말 및 방법 |
KR102120330B1 (ko) * | 2018-11-13 | 2020-06-08 | 주식회사 싸이투코드 | 위치 정보를 이용한 블록체인 방식의 계약 단말 및 방법 |
CN109829823A (zh) * | 2019-01-31 | 2019-05-31 | 山东浪潮商用系统有限公司 | 一种境外旅客购物离境退税业务信息管理平台及方法 |
CH716111A1 (de) * | 2019-04-24 | 2020-10-30 | Rene Gspurning Lekov | Systeme, Verfahren und Artikel zur Identifizierung von Waren und Dienstleistungen zum Zwecke der Erfassung und Berichterstattung von Mehrwertsteuerbarkeit mit digitaler Ausführung durch dezentrale Abwicklung von Transaktionen insbesondere mit rechtswirksamen Wertdaten-Token (RWTD) in kybernetisch betriebenen, selbstverwalteten Netzwerken. |
CN112017018A (zh) * | 2019-05-28 | 2020-12-01 | 阿里巴巴集团控股有限公司 | 基于区块链的退税方法和系统以及电子设备 |
CN110457939A (zh) * | 2019-07-05 | 2019-11-15 | 方欣科技有限公司 | 一种基于区块链的税务信息安全与查询系统以及实现方法 |
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KR20210136512A (ko) | 2020-05-08 | 2021-11-17 | (주)헤리티지케이 | 블록체인 기반의 세금 관리 방법 |
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JP7349689B1 (ja) * | 2022-09-07 | 2023-09-25 | 義博 矢野 | 情報処理方法及び情報処理システム |
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JP2005031946A (ja) * | 2003-07-11 | 2005-02-03 | Bank Of Tokyo-Mitsubishi Ltd | 電子マネー決済システム |
KR20090064267A (ko) * | 2007-12-14 | 2009-06-18 | 주식회사 하나은행 | 부가세 환급 내역을 자동 산출하는 기업카드 관리 시스템,단말장치 및 그 운용 방법 |
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KR101673073B1 (ko) * | 2015-02-25 | 2016-11-04 | 이진희 | 블록체인 구조를 사용하는 암호화화폐 거래방법 |
JP6304076B2 (ja) * | 2015-03-05 | 2018-04-04 | ブラザー工業株式会社 | 情報処理装置、コンテンツ配信システム、情報処理方法、及びプログラム |
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JP6358658B2 (ja) * | 2015-11-09 | 2018-07-18 | 日本電信電話株式会社 | ブロックチェーン生成装置、ブロックチェーン生成方法、ブロックチェーン検証装置、ブロックチェーン検証方法およびプログラム |
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EP3447715A4 (en) | 2019-11-06 |
JP2019530032A (ja) | 2019-10-17 |
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