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The collected user information is stored in the cloud storage, and there is a risk of information leakage. In order to protect the security and the privacy of user information, the user and cloud provider will periodically execute a protocol called proof of retrievability scheme. A proof of retrievability scheme ensures the security of the data by generating proof to convince the user that the cloud provider does correctly store the user information. In this paper, we construct a proof of retrievability scheme using the blockchain technology. Using the advantage that the stored data cannot be tampered with in blockchain, this ensures the integrity of the data. Specifically, some related definitions, security models, and a blockchain-based construction of a proof of retrievability scheme are given. Then the validity and security of the scheme are proved later. As a result, user information can be protected by our scheme.<\/jats:p>","DOI":"10.1155\/2022\/3186112","type":"journal-article","created":{"date-parts":[[2022,2,3]],"date-time":"2022-02-03T16:20:31Z","timestamp":1643905231000},"page":"1-8","source":"Crossref","is-referenced-by-count":6,"title":["Blockchain-Based Proof of Retrievability Scheme"],"prefix":"10.1155","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7602-6328","authenticated-orcid":true,"given":"Yan","family":"Ren","sequence":"first","affiliation":[{"name":"School of Mathematics and Information Technology, Yuncheng University, Yuncheng 044000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6496-2722","authenticated-orcid":true,"given":"Haipeng","family":"Guan","sequence":"additional","affiliation":[{"name":"School of Mathematics and Information Technology, Yuncheng University, Yuncheng 044000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9137-5216","authenticated-orcid":true,"given":"Qiuxia","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Mathematics and Information Technology, Yuncheng University, Yuncheng 044000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7228-1978","authenticated-orcid":true,"given":"Zongxiang","family":"Yi","sequence":"additional","affiliation":[{"name":"School of Mathematics and Systems Science, Guangdong Polytechnic Normal University, Guangzhou 510665, China"},{"name":"Guangdong Provincial Key Laboratory of Information Security Technology, Guangzhou 510006, China"},{"name":"School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"doi-asserted-by":"publisher","key":"1","DOI":"10.1145\/1721654.1721672"},{"doi-asserted-by":"publisher","key":"2","DOI":"10.1016\/j.future.2008.12.001"},{"doi-asserted-by":"publisher","key":"3","DOI":"10.1109\/msp.2009.87"},{"doi-asserted-by":"publisher","key":"4","DOI":"10.1109\/mitp.2009.40"},{"doi-asserted-by":"publisher","key":"5","DOI":"10.1016\/j.future.2016.11.031"},{"doi-asserted-by":"publisher","key":"6","DOI":"10.1007\/s11235-020-00747-w"},{"doi-asserted-by":"publisher","key":"7","DOI":"10.1002\/int.22666"},{"doi-asserted-by":"publisher","key":"8","DOI":"10.1016\/j.future.2010.12.006"},{"doi-asserted-by":"publisher","key":"9","DOI":"10.1007\/s13174-010-0007-6"},{"doi-asserted-by":"publisher","key":"10","DOI":"10.1109\/icceet.2012.6203873"},{"key":"11","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.jnca.2018.03.017","article-title":"A survey on proof of retrievability for cloud data integrity and availability: cloud storage state-of-the-art, issues, solutions and future trends","volume":"110","author":"C. 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