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Fixity and Fluidity in Digital Preservation

Posted by: Bill LeFurgy

Kent Anderson offers a provocative post in The Mirage of Fixity — Selling an Idea Before Understanding the Concept.  Anderson takes Nicholas Carr to task for an article in the Wall Street Journal bemoaning the death of textual fixity.  Here’s a quote from Carr: Once digitized, a page of words loses its fixity. It can change …

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File Fixity and Digital Preservation Storage: More Results from the NDSA Storage Survey

Posted by: Susan Manus

The following is a guest post by Jefferson Bailey, Fellow at the Library of Congress’s Office of Strategic Initiatives. A vexing property of digital objects is the difficulties they pose to ensuring their ongoing authenticity and stability. Files can become corrupted by use, bits can rot even when unused, and during transfer the parts essential …

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NDSA Levels of Digital Preservation: Release Candidate One

Posted by: Trevor Owens

In software development a release candidate is a beta version with the potential to be the final product.  Welcome to the release candidate for the NDSA Levels of Digital Preservation. After some fantastic commentary on the blog, and presentations at a series of conferences to solicit feedback, I’m excited to share this revised version of the levels for further …

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The is of the Digital Object and the is of the Artifact

Posted by: Trevor Owens

Fixity is a key concept for digital preservation, a cornerstone even. As we’ve explained before, digital objects have a somewhat curious nature. Encoded in bits, you need to check to make sure that a given digital object is actually the same thing you started with. Thankfully, we have the ability to compute checksums, or cryptographic hashes. This …

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A Storage Technology Cage Match

Posted by: Leslie Johnston

The Library of Congress hosts a small annual meeting on preservation storage that brings vendors and the preservation community together to share points of view.  The 2012 Designing Storage Architectures meeting was held on September 20-21, and as usual it was enlightening–and exciting. Two forms of large-scale storage have the largest amount of market share:  …

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More Product, Less Process for Born-Digital Collections: Reflections on CurateCamp Processing

Posted by: Trevor Owens

The following is a guest post from  Meg Phillips, Electronic Records Lifecycle Coordinator for the National Archives and Records Administration. “What’s the bare minimum I can responsibly do with my electronic stuff?” was one of the central questions on the table at  CurateCamp Processing. The unconference,  focused on Processing Data / Processing Collections, was a …

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How Do You Staff Your Digital Preservation Initiatives?

Posted by: Butch Lazorchak

The following is a guest post by Jimi Jones, Digital Audiovisual Formats Specialist with the Office of Strategic Initiatives. Digital preservation is an emergent field. Businesses, cultural memory institutions and government bodies that want to responsibly preserve and generate digital assets face significant challenges with respect to staffing. How many staff do we need? What …

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Prognosticating Digital Preservation Infrastructure: Final Results from the NDSA Storage Survey

Posted by: Trevor Owens

The following is a guest post by Jefferson Bailey, Fellow at the Library of Congress’s Office of Strategic Initiatives. Over the last few months, we have been reporting results from the storage survey conducted by the NDSA Infrastructure Working Group, one of the five working groups of the The National Digital Stewardship Alliance. See the …

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Apocalypse Bit: Disaster Mythologies and Digital Preservation

Posted by: Erin Engle

The following is a guest post by Jefferson Bailey, Fellow at the Library of Congress’s Office of Strategic Initiatives. A number of us around the office have fielded some interesting questions recently, both at public events and over email, regarding digital preservation’s susceptibility to what I will call, for lack of a better term, cataclysmic …