ARCHANGEL: Tamper-Proofing Video Archives Using Temporal Content Hashes on the Blockchain
ARCHANGEL: Tamper-Proofing Video Archives Using Temporal Content Hashes on the Blockchain
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DOI：
10.1109/cvprw.2019.00338
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发表时间：
2019-04
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影响因子：
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通讯作者：
Tu Bui;Daniel Cooper;J. Collomosse;Mark Bell;Alex Green;John Sheridan;Jez Higgins;Arindra Das;Jared Keller;Olivier Thereaux;Alan W. Brown
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文献类型：
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作者：
Tu Bui;Daniel Cooper;J. Collomosse;Mark Bell;Alex Green;John Sheridan;Jez Higgins;Arindra Das;Jared Keller;Olivier Thereaux;Alan W. Brown
我们介绍天使长；基于分布式账本的数字视频档案长期完整性保障系统。首先，我们描述了一种新的深度网络架构，用于从持续时间为几分钟或几小时的视听流中计算紧凑的时间内容哈希（TCHs）。我们的TCHs对意外或恶意的内容修改（篡改）很敏感，但对用于编码视频的编解码器是不变的。这是必要的，因为馆长要求档案格式随着时间的推移而改变视频，以确保将来的可访问性。其次，我们描述了如何通过分布在多个独立档案中的权威证明区块链来保护tchc（以及用于派生它们的模型）。我们在联合王国、爱沙尼亚和挪威国家政府档案馆参与的一次试验部署中报告ARCHANGEL的功效。
We present ARCHANGEL; a novel distributed ledger based system for assuring the long-term integrity of digital video archives. First, we describe a novel deep network architecture for computing compact temporal content hashes (TCHs) from audio-visual streams with durations of minutes or hours. Our TCHs are sensitive to accidental or malicious content modification (tampering) but invariant to the codec used to encode the video. This is necessary due to the curatorial requirement for archives to format shift video over time to ensure future accessibility. Second, we describe how the TCHs (and the models used to derive them) are secured via a proof-of-authority blockchain distributed across multiple independent archives. We report on the efficacy of ARCHANGEL within the context of a trial deployment in which the national government archives of the United Kingdom, Estonia and Norway participated.