** Protective Marking : NOT PROTECTIVELY MARKED **
The National Archives provides the PRONOM service to the digital
preservation community; PRONOM is a registry of technical information
about file formats and software which enables long-term preservation of
digital data. Each PRONOM format contains a persistent unique
identification code (PUID), which identifies the format unambiguously.
In addition, the PRONOM registry currently holds identifiers of the
x-PUID type, which are used to provide temporary or experimental
namespaces for formats until they can be assigned the full PUID.
As part of ongoing development work to improve the PRONOM service, The
National Archives are in the process of phasing out the usage of
x-PUIDs, and continuing only with the full persistent PUID codes. This
conversion work is due to complete by the end of August 2009, with the
result that all identifiers used from that point onwards will be fully
persistent and unambiguous.
If you have any queries about how this will affect the PRONOM service,
please don't hesitate to contact the PRONOM helpdesk at
[log in to unmask]
Craig Alexander Moore
Digital Archivist
The National Archives
+44 (0) 20 8392 5330, ext. 2593
www.nationalarchives.gov.uk <http://www.nationalarchives.gov.uk>
Please don't print this e-mail unless you really need to.
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