{"updated":"2025-01-19T18:39:39.471072+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00208850","sets":["581:10023:10035"]},"path":["10035"],"owner":"44499","recid":"208850","title":["ブロックチェーンを用いた透明性のある抽選システムの提案と実装"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-12-15"},"_buckets":{"deposit":"4b1d50cf-6dd5-435e-997a-c2946b7dbf5e"},"_deposit":{"id":"208850","pid":{"type":"depid","value":"208850","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"ブロックチェーンを用いた透明性のある抽選システムの提案と実装","author_link":["525085","525084","525087","525086"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ブロックチェーンを用いた透明性のある抽選システムの提案と実装"},{"subitem_title":"Transparent Loot Box System Using Blockchain","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[特集：ユーザブルセキュリティ] ブロックチェーン，Ethereum，乱数，抽選","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2020-12-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"立命館大学大学院情報理工学研究科／現在，株式会社NTTデータ"},{"subitem_text_value":"立命館大学情報理工学部"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate school of Information Science and Engineering, Ritsumeikan University / Presently with NTT DATA Corporation","subitem_text_language":"en"},{"subitem_text_value":"College of Information Science and Engineering, Ritsumeikan University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/208850/files/IPSJ-JNL6112040.pdf","label":"IPSJ-JNL6112040.pdf"},"date":[{"dateType":"Available","dateValue":"2022-12-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL6112040.pdf","filesize":[{"value":"3.8 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"30ccb480-bf02-43c6-9398-f1276b347424","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2020 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"廣澤, 龍典"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"上原, 哲太郎"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tatsunori, Hirosawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tetsutaro, Uehara","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"インターネットやスマートフォンの普及により，オンラインサービスにおいてゲームや懸賞などにおける抽選の機会が増えている．しかし，抽選に用いられる乱数の生成手法は非公開であることが多く，抽選結果もその乱数の生成結果を正しく反映しているか確認は難しい．そのため，ユーザは抽選の結果に納得できない場合がある．そこで我々は，ブロックチェーンを用いた透明性のある抽選システムを提案する．スマートコントラクトによって乱数の生成手法は公開され，乱数の生成結果としての賞品などの対応付けはブロックチェーン上に記録・公開されるため，ユーザは抽選の正当性を確認することが可能となる．Ethereum上に実装したプロトタイプシステムによって，本提案手法が実用的な時間およびコストで実装可能であることを示した．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"With the widespread use of the Internet and smartphones, today we often open the loot boxes to win lotteries for games and prizes in online services. However, the methods used to generate random numbers to decide prizes are not disclosed in many cases and it is also difficult to verify whether the result of the lottery reflects the random number generation accordingly. It might cause users' dissatisfaction with the results of the lottery. In this paper, we propose a blockchain-based transparent lottery system. Smart contracts make the algorithm of random number generation available to the public, and the correspondence of resulting prizes can be recorded and published on the blockchain, so users can verify the validity of the lottery. The prototype system on Ethereum shows that our proposed method can be implemented in a practical time and cost.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"1870","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"1859","bibliographicIssueDates":{"bibliographicIssueDate":"2020-12-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicVolumeNumber":"61"}]},"relation_version_is_last":true,"item_2_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20729/00208748","subitem_identifier_reg_type":"JaLC"}]},"weko_creator_id":"44499"},"created":"2025-01-19T01:10:13.133581+00:00","id":208850,"links":{}}