Preserv

       
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Preserv 2 final report 'candid and realistic'
The final report from the Preserv 2 project has been described by the JISC programme manager responsible for funding the project, Neil Grindley, as ‚ÄĚcandid and realistic about the ... more
Project Partners

Oxford University Library Services ECS, University of Southampton The National Archives
Project Advisors
The British Library
Funded By
JISC

PRESERV 2 is funded by JISC within its capital programme in response to the September 06 call (Circular 04/06), Repositories and Preservation strand

PRESERV was originally funded by JISC within the 4/04 programme Supporting Digital Preservation and Asset Management in Institutions, theme 3: Institutional repository infrastructure development

MORE INFORMATION?

EMAIL: Steve Hitchcock, Project Manager

TEL: +44 (0)23 8059 3256
FAX: +44 (0)23 8059 2865

PRESERV Project,
IAM (Intelligence, Agents, Multimedia) Group,
Department of Electronics & Computer Science,
University of Southampton,
Highfield,
Southampton
SO17 1BJ, UK
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Preservation Services
       

Preservation - Check

The following pages in this section describe the processes involved in active preservation services.

A service that can verify if the stored objects and files remain consistent over time helps in systems where these objects can be distributed over many platforms, some of which may not have a bit-checker embedded. Typically this is done by generating a checksum when the file is first saved and stored, and later comparing this with a newly generated checksum to identify any differences between the two.

This same process can also be used to verify the authenticity of a remotely stored file. If the checksum is not the same but the file is still readable then it may have been changed and no longer be the authentic copy.

In systems where there are many ways of changing the contents of a file, it is important to maintain authenticity and to verify the consistency of the bits on disk.

<--- Format risk analysis: a preliminary interface implementation 4/8 Preservation - Analyse --->

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