December 24, 2021 Conference paper Open Access

Bergers, Jeroen; Shi, Zeshun; Korsmit, Ken; Zhiming Zhao

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    "title": "DWH-DIM: A Blockchain Based Decentralized Integrity Verification Model for Data Warehouses", 
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    "creators": [
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        "affiliation": "University of Amsterdam", 
        "name": "Bergers, Jeroen"
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        "affiliation": "University of Amsterdam", 
        "name": "Shi, Zeshun"
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        "affiliation": "Spatial Eye B.V.", 
        "name": "Korsmit, Ken"
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        "orcid": "0000-0002-6717-9418", 
        "affiliation": "University of Amsterdam", 
        "name": "Zhiming Zhao"
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      "acronym": "Blockchain", 
      "url": "http://nsclab.org/blockchain2021/", 
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    "description": "<p>Data manipulation is often considered a serious</p>\n\n<p>problem in industrial applications as data tampering can lead</p>\n\n<p>to inaccurate financial reporting or even a corporate security</p>\n\n<p>crisis. A correct representation of company data is essential</p>\n\n<p>for the companies&rsquo; core business processes and is requested</p>\n\n<p>by governments and investors. However, the current solution,</p>\n\n<p>third-party auditing, is expensive and cannot be fully trusted.</p>\n\n<p>In this paper, we present the Data Warehouse Decentralized</p>\n\n<p>Integrity Model (DWH-DIM) to validate the integrity of the</p>\n\n<p>data warehouse and replace the current process. To address</p>\n\n<p>the challenge that the existing distributed integrity verification</p>\n\n<p>models cannot handle GDPR and are limited by scalability,</p>\n\n<p>our model uses a distributed file system to store attributes that</p>\n\n<p>can be used for the integrity verification task. The blockchain</p>\n\n<p>further confirms the authenticity of the files. Based on the</p>\n\n<p>proposed model, we present a detailed implementation of the</p>\n\n<p>DWH-DIM tool. The implementation is tested with a use case</p>\n\n<p>and several benchmarks. Experimental results demonstrate that</p>\n\n<p>our proposed model is feasible and meets the requirement for</p>\n\n<p>certificate warehouse data.</p>"
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