Fixity and Fluidity in Digital Preservation 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.
In the world of digital stewardship, file fixity is a very serious matter. It’s regarded as critical to ensure that digital files are what they purport to be, principally through using checksum algorithms to verify that the exact digital structure of a file remains unchanged as it comes into and remains in preservation custody. The technology behind file fixity is discussed in an earlier post on this blog; a good description of current preservation fixity practices is outlined in another post.
Source: The Signal