The National Archives Announces Modification To x-PUID Proposal

After receiving feedback from the PRONOM user community, the National Archives has made the decision to modify their proposal to phase out x-PUIDs. PRONOM users have indicated that stability is of a higher priority than uniformity in the PUID scheme, and as an institution that is responsive to the needs of our user base, The National Archives will continue to support all existing x-PUIDs on PRONOM. In future, however, no further x-PUIDs will be created; all formats will be given a full PUID from now onwards.

The benefit of this approach is that no repositories or users of PRONOM will need to re-characterise their collections, since format identification will remain persistent.

Please feel free to contact us on pronom@nationalarchives.gov.uk.