Authority Responsible for an Identifier

Names the authority (such as CrossRef, GenBank, or PDB) that assigned the identifier or is responsible for the identifier


This attribute should be used to record the assigning authority for publication identifiers (<pub-id>) such as DOIs, which might be assigned by, for example, “crossref” or “figshare”. The attribute can also be used to lessen the semantic overload on the @pub-id-type attribute, by recording the authority such as “GenBank” or “PDB” that assigned the identifier.
This attribute is used (as of this version) on several elements: <book-id>, <pub-id>, and <ext-link>. The attribute makes more semantic sense for a publication identifier, but was assigned to <ext-link> to handle those rare cases where an external link, which is a link by definition, codes an identifier, such as a DOI.

Used on Elements: <book-id>, <ext-link>, <pub-id>

Text, numbers, or special charactersThe name of the organization assigning the identifier.
Restriction@assigning-authority is an optional attribute; there is no default. The attribute is only used when the authority is known.


An <ext-link> identifying a DOI and naming the DOI deposit group:
<p>In <italic>Developing Thin Clients Using Amphibious Epistemologies</italic> 
(<ext-link ext-link-type="doi" xlink:href="" 
Josiah Carberry introduced &ldquo;Entrust,&rdquo; a linear-time tool for 
simulating architecture.</p>