4.2.5 - The repository shall have access to necessary tools and resources to provide authoritative Representation Information for all of the digital objects it contains.
This is necessary in order to ensure that the repository’s digital objects are understandable to the Designated Community.
Examples of Ways the Repository can Demonstrate it is Meeting these Requirements
Subscription or access to such registries; association of unique identifiers to registries of Representation Information (including format registries); viewable records in local registries (with persistent links to digital objects); database records that include Representation Information and a persistent link to relevant digital objects.Introduction
SP gathers all file format information for each file using authoritative and trusted tools. This information includes details about the file format, including a link to format registry. Please see 18.104.22.168, 22.214.171.124, 126.96.36.199, and 188.8.131.52 for details.
Digital Preservation Policy Librarian