ARCHANGEL: Tamper-Proofing Video Archives Using Temporal Content Hashes on the Blockchain

Bui, Tien D.; Cooper, Daniel; Collomosse, John; Bell, Mark; Green, Alexander L.; Sheridan, John; Higgins, Jez; Das, Arindra; Keller, Jared; Thereaux, Olivier; Brown, Alan W.

doi:10.1109/cvprw.2019.00338

Cited by 21 publications

(11 citation statements)

References 25 publications

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“…For this reason, many DLT implementations rely upon the distributed ledger to underpin the integrity of an otherwise mutable data store such as a cloud-based data lake (Franceschi et al, 2018). Trust in data is derived from transparency and nonrepudiation (evidenced, for example, by hashes or "fingerprints" of data) whilst accommodating its future redaction (Collomosse et al, 2018;Bui et al, 2019;Yang et al, 2020). This and other issues with contemporary DLT (principally, scalability) point to DLT, not as a storage technology for immutable data, but as a supportive technology to underwrite the integrity and promote trust in data.…”

Section: Issues Of Trust and Privacymentioning

confidence: 99%

Perspectives on “Good” in Blockchain for Good

Parry

Collomosse

2021

Front. Blockchain

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Blockchain projects have been developed to extend the reach of distributed ledger technology (DLT) beyond cryptocurrency to achieve “good” in the world. Such projects may make a claim for moral, ethical, and responsible intent, but many researchers have not critically examined what good means in context. The concept of good has been debated for centuries and whilst we will not conclude the argument, we should engage in the discourse. We propose the idea that exploration across micro, meso, and macro levels of value creating ecosystems is needed. The implications, both practical and theoretical, of the use of blockchain for good require analysis. As the ambition for blockchain innovations to transform society for the better becomes practical reality, understanding of such change will come from transdisciplinary researchers able to bridge knowledge of social and technical systems.

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Section: Issues Of Trust and Privacymentioning

confidence: 99%

Perspectives on “Good” in Blockchain for Good

Parry

Collomosse

2021

Front. Blockchain

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“…Bottleneck zt serves as the content hash and is compressed via PQ post-process (not shown). incarnation of ARCHANGEL described in Collomosse et al [47], [4] which utilised a proof-of-work (PoW) blockchain to store SHA-256 hashes of binary zip files containing academic research data. Also related, is the prior work of Gipp et al [49] where SHA-256 hashes specifically of video are stored in a PoW (Bitcoin) blockchain for evidencing car collision incidents.…”

Section: Related Workmentioning

confidence: 99%

“…The hash is computed over both the audio and the visual components of the video stream. We initially proposed an earlier version of our TCH scheme using a hybrid CNN-LSTM network in workshop paper [4]. In this extended paper we build on this approach to propose HAAEa hierarchical LSTM architecture that also incorporates a novel attention scheme.…”

Section: Introductionmentioning

confidence: 99%

Tamper-Proofing Video With Hierarchical Attention Autoencoder Hashing on Blockchain

Bui

Cooper

Collomosse

et al. 2020

IEEE Trans. Multimedia

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We present ARCHANGEL; a novel distributed ledger based system for assuring the long-term integrity of digital video archives. First, we introduce a novel deep network architecture using a hierarchical attention autoencoder (HAAE) to compute temporal content hashes (TCHs) from minutes or hourlong audio-visual streams. Our TCHs are sensitive to accidental or malicious content modification (tampering). The focus of our self-supervised HAAE is to guard against content modification such as frame truncation or corruption but ensure invariance against format shift (i.e. codec change). 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, United States of America, Estonia, Australia and Norway participated.

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“…Archangel. The TCH is stored on the blockchain while the algorithm and video are stored off-chain (Bui et al, 2019).…”

Section: Blockchain and Records Managementmentioning

confidence: 99%

Blockchain and records management: disruptive force or new approach?

Bhatia

Douglas

Most

2020

RMJ

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Purpose Archival repositories rely on the authenticity of records. The potential manipulation of records and information present a unique challenge to archival repositories and their mission to collect, maintain and provide access to the authentic records. The purpose of this paper is to outline the technical aspects of blockchain and describe potential records management and archival implications of the technology. The implications to consider include data management, records existing on a blockchain and records disposition. Design/methodology/approach The approach included reviews of technical literature and attendance at blockchain conferences, workshops and seminars. The literature review focused on general studies, technical publications, use cases and nascent applications for managing records created and stored on a blockchain. The approach is intended to answer the questions: what basic information do records managers need to understand blockchain? How will blockchain technology impact records management? Does blockchain shift toward decentralized records management? Findings Implemented properly, blockchain technology can immutably record transactions and provide independent verification and authentication of digital records. Given the ease with which electronic records can sometimes be manipulated, the promise of certainty and third-party verification has drawn sizeable interest and investment. This paper shows records exist on blockchains and must be managed appropriately. The distributed structure inherent in blockchains is a shift from centralized records management and will challenge the approach and assumptions of the profession. Records managers must determine recordkeeping requirements before developing a business application using blockchain and the fixed nature of blockchains means that these considerations must be included at the outset. Originality/value This proposed paper began as a blockchain white paper produced by the US National Archives for the federal records management community. It has been re-focused as a general review paper for the Records Management Journal to explain blockchain and show how it may be used to address broader records and information management concerns such as authenticity, veracity, and trustworthiness.

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ARCHANGEL: Tamper-Proofing Video Archives Using Temporal Content Hashes on the Blockchain

Cited by 21 publications

References 25 publications

Perspectives on “Good” in Blockchain for Good

Perspectives on “Good” in Blockchain for Good

Tamper-Proofing Video With Hierarchical Attention Autoencoder Hashing on Blockchain

Blockchain and records management: disruptive force or new approach?

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