The Cancer Letter February 5, 2016

February 8, 2016

The February 5, 2016 issue of Cancer Letter has been posted


Stem Cell Research News, 2016 February 1

February 3, 2016

The February 1st issue of the Stem Cell Research News has been posted.


Clinical Cancer Letter January 2016

February 2, 2016

The January 2016 issue of The Clinical Cancer Letter has been posted.


Clinical Cancer Letter December 2015

February 2, 2016

The December 2015 issue of The Clinical Cancer Letter has been posted.


Archives FAQ: What is fixity, and why should I be checking it?

February 1, 2016

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File fixity refers to the property of a digital file being fixed, or unchanged. In other words, fixity means the file’s bitstream (1s and 0s) have not changed over time.

Fixity checking allows you to identify corrupted digital files, and replace them with a copy from a backup.

The most widely used tools for generating fixity information are checksums. A checksum is a count of the number of bits in a digital file.

To check fixity:
• Generate a checksum (using CRC, MD5, or various SHA algorithms)
• Record that checksum
• Re-generate it periodically over time (if the value stays the same, your file has not changed)

The upshot of collecting and checking fixity information:
• Replace corrupt digital files
• Monitor hardware degradation
• Document provenance of digital materials

To learn more about preserving digital records or the City of Hope Archives contact Susan Yates, Archives Program Manager, at syates@coh.org or Jennifer Miller, Digitization Archivist, at jennmiller@coh.org.


The Cancer Letter January 29, 2016

February 1, 2016

The January 29, 2016 issue of Cancer Letter has been posted


The Cancer Letter January 22, 2016

January 25, 2016

The January 22, 2016 issue of Cancer Letter has been posted


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